[Code of Federal Regulations]
[Title 40, Volume 24]
[Revised as of January 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR302.4]

[Page 282-348]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 302--DESIGNATION, REPORTABLE QUANTITIES, AND NOTIFICATION--Table of Contents
 
Sec. 302.4  Designation of hazardous substances.

    (a) Listed hazardous substances. The elements and compounds and 
hazardous wastes appearing in table 302.4 are designated as hazardous 
substances under section 102(a) of the Act.
    (b) Unlisted hazardous substances. A solid waste, as defined in 40 
CFR 261.2, which is not excluded from regulation as a hazardous waste 
under 40 CFR 261.4(b), is a hazardous substance under section 101(14) of 
the Act if it exhibits any of the characteristics identified in 40 CFR 
261.20 through 261.24.
    Note: The numbers under the column headed ``CASRN'' are the Chemical 
Abstracts Service Registry Numbers for each hazardous substance. Other 
names by which each hazardous substance is identified in other statutes 
and their implementing regulations are provided in the ``Regulatory 
Synonyms'' column. The ``Statutory RQ'' column lists the RQs for 
hazardous substances established by section 102 of CERCLA. The 
``Statutory Code'' column indicates the statutory source for designating 
each substance as a CERCLA hazardous substance: ``1'' indicates that the 
statutory source is section 311(b)(4) of the Clean Water Act, ``2'' 
indicates that the source is section 307(a) of the Clean Water Act, 
``3'' indicates that the source is section 112 of the Clean Air Act, and 
``4'' indicates that the source is RCRA section 3001. The ``RCRA Waste 
Number'' column provides the waste identification numbers assigned to 
various substances by RCRA regulations. The column headed ``Category'' 
lists the code letters ``X,'' ``A,'' ``B,'' ``C,'' and ``D,'' which are 
associated with reportable quantities of 1, 10, 100, 1000, and 5000 
pounds, respectively. The ``Pounds (kg)'' column provides the reportable 
quantity adjustment for each hazardous substance in pounds and 
kilograms.

[[Page 283]]



                                                               Table 302.4--List of Hazardous Substances and Reportable Quantities
                                                                 [Note: All Comments/Notes Are Located at the End of This Table]
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  Statutory                                                   Final RQ
                                                                          ----------------------------------------------------------------------------------------------------------------------
         Hazardous substance            CASRN       Regulatory synonyms                                                                              RCRA waste
                                                                             RQ    Code []       Number          Category      Pounds (Kg)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acenaphthene........................      83329  ........................      1*                                   2                             ...............  B                  100 (45.4)
Acenaphthylene......................     208968  ........................      1*                                   2                             ...............  D                 5000 (2270)
Acetaldehyde........................      75070  Ethanal.................    1000                               1,3,4                             U001             C                  1000 (454)
Acetaldehyde, chloro-...............     107200  Chloroacetaldehyde......      1*                                   4                             P023             C                  1000 (454)
Acetaldehyde, trichloro-............      75876  Chloral.................      1*                                   4                             U034             D                 5000 (2270)
Acetamide...........................      60355  ........................      1*                                   3                             ...............  B                  100 (45.4)
Acetamide, N-(aminothioxomethyl)-...     591082  1-Acetyl-2-thiourea.....      1*                                   4                             P002             C                  1000 (454)
Acetamide, N-(4-ethoxyphenyl)-......      62442  Phenacetin..............      1*                                   4                             U187             B                  100 (45.4)
Acetamide, 2-fluoro-................     640197  Fluoroacetamide.........      1*                                   4                             P057             B                  100 (45.4)
Acetamide, N-9H-fluoren-2-yl-.......      53963  2-Acetylaminofluorene...      1*                                 3,4                             U005             X                   1 (0.454)
Acetic acid.........................      64197  ........................    1000                                   1                                              D                 5000 (2270)
Acetic acid (2,4-dichlorophenoxy)-,       94757  2,4-D Acid,.............     100                               1,3,4                             U240             B                  100 (45.4)
 salts & esters.                                 2,4-D,salts and esters..
Acetic acid, Lead(2+) salt..........     301042  Lead acetate............    5000                                 1,4                             U144             A                   10 (4.54)
Acetic acid, thallium (1+) salt.....     563688  Thallium(I) acetate.....      1*                                   4                             U214             B                  100 (45.4)
Acetic acid, (2,4,5-                      93765  2,4,5-T.................     100                                 1,4                             U232             C                  1000 (454)
 trichlorophenoxy).                              2,4,5-T acid............
Acetic acid, ethyl ester............     141786  Ethyl acetate...........      1*                                   4                             U112             D                 5000 (2270)
Acetic acid, fluoro-, sodium salt...      62748  Fluoroacetic acid,            1*                                   4                             P058             A                   10 (4.54)
                                                  sodium salt.
Acetic anhydride....................     108247  ........................    1000                                   1                             ...............  D                 5000 (2270)
Acetone.............................      67641  2-Propanone.............      1*                                   4                             U002             D                 5000 (2270)
Acetone cyanohydrin.................      75865  Propanenitrile, 2-            10                                 1,4                             P069             A                   10 (4.54)
                                                  hydroxy-2-methyl-2-
                                                  Methyllactonitrile.
Acetonitrile........................      75058  ........................      1*                                 3,4                             U003             D                 5000 (2270)
Acetophenone........................      98862  Ethanone, 1-phenyl-.....      1*                                 3,4                             U004             D                 5000 (2270)
2-Acetylaminofluorene...............      53963  Acetamide, N-9H-fluoren-      1*                                 3,4                             U005             X                   1 (0.454)
                                                  2-yl-.
Acetyl bromide......................     506967  ........................    5000                                   1                             ...............  D                 5000 (2270)
Acetyl chloride.....................      75365  ........................    5000                                 1,4                             U006             D                 5000 (2270)
1-Acetyl-2-thiourea.................     591082  Acetamide, N-                 1*                                   4                             P002             C                  1000 (454)
                                                  (aminothioxomethyl)-.
Acrolein............................     107028  2-Propenal..............       1                             1,2,3,4                             P003             X                   1 (0.454)
Acrylamide..........................      79061  2-Propenamide...........      1*                                 3,4                             U007             D                 5000 (2270)
Acrylic acid........................      79107  2-Propenoic acid........      1*                                 3,4                             U008             D                 5000 (2270)
Acrylonitrile.......................     107131  2-Propenenitrile........     100                             1,2,3,4                             U009             B                  100 (45.4)
Adipic acid.........................     124049  ........................    5000                                   1                             ...............  D                 5000 (2270)
Aldicarb............................     116063  Propanal, 2-methyl-2-         1*                                   4                             P070             X                   1 (0.454)
                                                  (methylthio)-,O-
                                                  [(methylamino)carbonyl]
                                                  oxime.
Aldrin..............................     309002  1,4,5,8-                       1                               1,2,4                             P004             X                   1 (0.454)
                                                  Dimethanonaphthalene,
                                                  1,2,3,4,10,10-10-
                                                  hexachloro-
                                                  1,4,4a,5,8,8a-hexahydro-
                                                  , (1alpha,
                                                  4alpha,4abeta,5alpha,8a
                                                  lpha,8abeta)-.
Allyl alcohol.......................     107186  2-Propen-1-ol...........     100                                 1,4                             P005             B                  100 (45.4)

[[Page 284]]


Allyl chloride......................     107051  ........................    1000                                 1,3                             ...............  C                  1000 (454)
Aluminum phosphide..................   20859738  ........................      1*                                   4                             P006             B                  100 (45.4)
Aluminum sulfate....................   10043013  ........................    5000                                   1                             ...............  D                 5000 (2270)
4-Aminobiphenyl.....................      92671  ........................      1*                                   3                             ...............  X                   1 (0.454)
5-(Aminomethyl)-3-isoxazolol........    2763964  Muscimol 3(2H)-               1*                                   4                             P007             C                  1000 (454)
                                                  Isoxazolone, 5-
                                                  (aminomethyl)-.
4-Aminopyridine.....................     504245  4-Pyridinamine..........      1*                                   4                             P008             C                  1000 (454)
Amitrole............................      61825  1H-1,2,4-Triazol-3-amine      1*                                   4                             U011             A                   10 (4.54)
Ammonia.............................    7664417  ........................     100                                   1                             ...............  B                  100 (45.4)
Ammonium acetate....................     631618  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium benzoate...................    1863634  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium bicarbonate................    1066337  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium bichromate.................    7789095  ........................    1000                                   1                             ...............  A                   10 (4.54)
Ammonium bifluoride.................    1341497  ........................    5000                                   1                             ...............  B                  100 (45.4)
Ammonium bisulfite..................   10192300  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium carbamate..................    1111780  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium carbonate..................     506876  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium chloride...................   12125029  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium chromate...................    7788989  ........................    1000                                   1                             ...............  A                   10 (4.54)
Ammonium citrate, dibasic...........    3012655  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium fluoborate.................   13826830  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium fluoride...................   12125018  ........................    5000                                   1                             ...............  B                  100 (45.4)
Ammonium hydroxide..................    1336216  ........................    1000                                   1                             ...............  C                  1000 (454)
Ammonium oxalate....................    6009707  ........................    5000                                   1                             ...............  D                 5000 (2270)
                                        5972736
                                       14258492
Ammonium picrate....................     131748  Phenol, 2,4,6-trinitro-,      1*                                   4                             P009             A                   10 (4.54)
                                                  ammonium salt.
Ammonium silicofluoride.............   16919190  ........................    1000                                   1                             ...............  C                  1000 (454)
Ammonium sulfamate..................    7773060  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium sulfide....................   12135761  ........................    5000                                   1                             ...............  B                  100 (45.4)
Ammonium sulfite....................   10196040  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium tartrate...................   14307438  ........................    5000                                   1                             ...............  D                 5000 (2270)
                                        3164292
Ammonium thiocyanate................    1762954  ........................    5000                                   1                             ...............  D                 5000 (2270)
Ammonium vanadate...................    7803556  Vanadic acid, ammonium        1*                                   4                             P119             C                  1000 (454)
                                                  salt.
Amyl acetate........................     628637  ........................    1000                                   1                             ...............  D                 5000 (2270)
  iso-Amyl acetate..................     123922
  sec-Amyl acetate..................     626380
  tert-Amyl acetate.................     625161
Aniline.............................      62533  Benzenamine.............    1000                               1,3,4                             U012             D                 5000 (2270)
o-Anisidine.........................      90040  ........................      1*                                   3                             ...............  B                  100 (45.4)
Anthracene..........................     120127  ........................      1*                                   2                             ...............  D                 5000 (2270)

[[Page 285]]


Antimony [].
ANTIMONY AND COMPOUNDS..............       N.A.  Antimony Compounds......      1*                                 2,3                             ...............  ...............    [ast][ast]
Antimony Compounds..................       N.A.  ANTIMONY AND COMPOUNDS..      1*                                 2,3                             ...............  ...............    [ast][ast]
Antimony pentachloride..............    7647189  ........................    1000                                   1                             ...............  C                  1000 (454)
Antimony potassium tartrate.........   28300745  ........................    1000                                   1                             ...............  B                  100 (45.4)
Antimony tribromide.................    7789619  ........................    1000                                   1                             ...............  C                  1000 (454)
Antimony trichloride................   10025919  ........................    1000                                   1                             ...............  C                  1000 (454)
Antimony trifluoride................    7783564  ........................    1000                                   1                             ...............  C                  1000 (454)
Antimony trioxide...................    1309644  ........................    5000                                   1                             ...............  C                  1000 (454)
Argentate(1-), bis(cyano-C)-,            506616  Potassium silver cyanide      1*                                   4                             P099             X                   1 (0.454)
 potassium.
Aroclor 1016........................   12674112  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1221........................   11104282  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1232........................   11141165  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1242........................   53469219  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1248........................   12672296  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1254........................   11097691  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclor 1260........................   11096825  Aroclors................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 PCBs....................
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
Aroclors............................    1336363  PCBs....................      10                               1,2,3                             ...............  X                   1 (0.454)
                                                 POLYCHLORINATED
                                                  BIPHENYLS.
    Aroclor 1016....................   12674112  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1221....................   11104282  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1232....................   11141165  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1242....................   53469219  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1248....................   12672296  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1254....................   11097691  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
    Aroclor 1260....................   11096825  ........................      10                               1,2,3                             ...............  X                   1 (0.454)
Arsenic [    7440382  ........................      1*                                 2,3                             ...............  X                   1 (0.454)
 <].
Arsenic acid........................    1327522  Arsenic acid H3 AsO4....      1*                                   4                             P010             X                   1 (0.454)
                                        7778394
Arsenic acid H3 AsO4................    1327522  Arsenic acid............      1*                                   4                             P010             X                   1 (0.454)
                                        7778394
ARSENIC AND COMPOUNDS...............       N.A.  Arsenic Compounds             1*                                 2,3                             ...............  ...............    [ast][ast]
                                                  (inorganic including
                                                  arsine).
Arsenic Compounds (inorganic               N.A.  ARSENIC AND COMPOUNDS...      1*                                 2,3                             ...............  ...............    [ast][ast]
 including arsine).
Arsenic disulfide...................    1303328  ........................    5000                                   1                             ...............  X                   1 (0.454)
Arsenic oxide As2 O3................    1327533  Arsenic trioxide........    5000                                 1,4                             P012             X                   1 (0.454)

[[Page 286]]


Arsenic oxide As2 O5................    1303282  Arsenic pentoxide.......    5000                                 1,4                             P011             X                   1 (0.454)
Arsenic pentoxide...................    1303282  Arsenic oxide As2 O5....    5000                                 1,4                             P011             X                   1 (0.454)
Arsenic trichloride.................    7784341  ........................    5000                                   1                             ...............  X                   1 (0.454)
Arsenic trioxide....................    1327533  Arsenic oxide As2 O3....    5000                                 1,4                             P012             X                   1 (0.454)
Arsenic trisulfide..................    1303339  ........................    5000                                   1                             ...............  X                   1 (0.454)
Arsine, diethyl-....................     692422  Diethylarsine...........      1*                                   4                             P038             X                   1 (0.454)
Arsinic acid, dimethyl-.............      75605  Cacodylic acid..........      1*                                   4                             U136             X                   1 (0.454)
Arsonous dichloride, phenyl-........     696286  Dichlorophenylarsine....      1*                                   4                             P036             X                   1 (0.454)
Asbestos [][].
Auramine............................     492808  Benzenamine, 4,4'-            1*                                   4                             U014             B                  100 (45.4)
                                                  carbonimidoylbis (N,N-
                                                  dimethyl-.
Azaserine...........................     115026  L-Serine, diazoacetate        1*                                   4                             U015             X                   1 (0.454)
                                                  (ester).
Aziridine...........................     151564  Ethyleneimine...........      1*                                 3,4                             P054             X                   1 (0.454)
Aziridine, 2-methyl-................      75558  2-Methyl aziridine 1,2-       1*                                 3,4                             P067             X                   1 (0.454)
                                                  Propylenemine.
Azirino[2',3':3,4]pyrrolo[1,2-            50077  Mitomycin C.............      1*                                   4                             U010             A                   10 (4.54)
 a]indole-4,7-dione,6-amino-8-
 [[(aminocarbonylooxy]methyl]-
 1,1a,2,8,8a,8b-hexahydro-8a-methoxy-
 5-methyl-,[1aS-
 (1aalpha,8beta,8aalpha,8balpha)]-.
Barium cyanide......................     542621  ........................      10                                 1,4                             P013             A                   10 (4.54)
Benz[j]aceanthrylene, 1,2-dihydro-3-      56495  3-Methylcholanthrene....      1*                                   4                             U157             A                   10 (4.54)
 methyl-
Benz[c]acridine.....................     225514  ........................      1*                                   4                             U016             B                  100 (45.4)
Benzal chloride.....................      98873  Benzene, dichloromethyl-      1*                                   4                             U017             D                 5000 (2270)
Benzamide, 3,5-dichloro-N-(1,1-        23950585  Pronamide...............      1*                                   4                             U192             D                 5000 (2270)
 dimethyl-2-propynyl)-.
Benz[a]anthracene...................      56553  Benzo[a]anthracene......      1*                                 2,4                             U018             A                   10 (4.54)
                                                 1,2-Benzanthracene......
1,2-Benzanthracene..................      56553  Benz[a]anthracene.......      1*                                 2,4                             U018             A                   10 (4.54)
                                                 Benzo[a]anthracene......
Benz[a]anthracene, 7,12-dimethyl-...      57976  7,12-                         1*                                   4                             U094             X                   1 (0.454)
                                                  Dimethylbenz[a]anthrace
                                                  ne.
Benzenamine.........................      62533  Aniline.................    1000                               1,3,4                             U012             D                 5000 (2270)
Benzenamine, 4,4'-carbonimidoylbis       492808  Auramine................      1*                                   4                             U014             B                  100 (45.4)
 (N,N-dimethyl-
Benzenamine, 4-chloro-..............     106478  p-Chloroaniline.........      1*                                   4                             P024             C                  1000 (454)
Benzenamine, 4-chloro-2-methyl-,        3165933  4-Chloro-o-toluidine,         1*                                   4                             U049             B                  100 (45.4)
 hydrochloride                                    hydrochloride.
Benzenamine, N,N-dimethyl-4-              60117  Dimethyl aminoazobenzene      1*                                 3,4                             U093             A                   10 (4.54)
 (phenylazo-).                                   p-
                                                  Dimethylaminoazobenzene.
Benzenamine, 2-methyl-..............      95534  o-Toluidine.............      1*                                 3,4                             U328             B                  100 (45.4)
Benzenamine, 4-methyl-..............     106490  p-Toluidine.............      1*                                   4                             U353             B                  100 (45.4)
Benzenamine, 4,4'-methylenebis(2-        101144  4,4'-Methylenebis(2-          1*                                 3,4                             U158             A                   10 (4.54)
 chloro-.                                         chloroaniline).
Benzenamine, 2-methyl-,                  636215  o-Toluidine                   1*                                   4                             U222             B                  100 (45.4)
 hydrochloride.                                   hydrochloride.
Benzenamine, 2-methyl-5-nitro-......      99558  5-Nitro-o-toluidine.....      1*                                   4                             U181             B                  100 (45.4)
Benzenamine, 4-nitro-...............     100016  p-Nitroaniline..........      1*                                   4                             P077             D                 5000 (2270)
Benzene a...........................      71432  ........................    1000                             1,2,3,4                             U109             A                   10 (4.54)
Benzeneacetic acid, 4-chloro-[alpha]-    510156  Chlorobenzilate.........      1*                                 3,4                             U038             A                   10 (4.54)
 (4-chlorophenyl)-[alpha]-hydroxy-,
 ethyl ester.

[[Page 287]]


Benzene, 1-bromo-4-phenoxy-.........     101553  4-Bromophenyl phenyl          1*                                 2,4                             U030             B                  100 (45.4)
                                                  ether.
Benzenebutanoic acid, 4-[bis(2-          305033  Chlorambucil............      1*                                   4                             U035             A                   10 (4.54)
 chloroethyl)amino]-
Benzene, chloro-....................     108907  Chlorobenzene...........     100                             1,2,3,4                             U037             B                  100 (45.4)
Benzene, chloromethyl-..............     100447  Benzyl chloride.........     100                               1,3,4                             P028             B                  100 (45.4)
Benzenediamine, ar-methyl-..........      95807  Toluenediamine..........      1*                                 3,4                             U221             A                   10 (4.54)
                                         496720  2,4-Toluene diamine
                                         823405
                                       25376458
1,2-Benzenedicarboxylic acid,            117840  Di-n-octyl phthalate....      1*                                 2,4                             U107             D                 5000 (2270)
 dioctyl ester.
1,2-Benzenedicarboxylic acid, bis(2-     117817  Bis(2-                        1*                               2,3,4                             U028             B                  100 (45.4)
 ethylhexyl) ester.                               ethylhexyl)phthalate.
                                                 DEHP....................
                                                 Diethylhexyl phthalate..
1,2-Benzenedicarboxylic acid,             84742  n-Butyl phthalate.......     100                             1,2,3,4                             U069             A                   10 (4.54)
 dibutyl ester.                                  Dibutyl phthalate.......
                                                 Di-n-butyl phthalate....
1,2-Benzenedicarboxylic acid,             84662  Diethyl phthalate.......      1*                                 2,4                             U088             C                  1000 (454)
 diethyl ester.
1,2-Benzenedicarboxylic acid,            131113  Dimethyl phthalate......      1*                               2,3,4                             U102             D                 5000 (2270)
 dimethyl ester.
Benzene, 1,2-dichloro-..............      95501  o-Dichlorobenzene.......     100                               1,2,4                             U070             B                  100 (45.4)
                                                 1,2-Dichlorobenzene.....
Benzene, 1,3-dichloro-..............     541731  m-Dichlorobenzene.......      1*                                 2,4                             U071             B                  100 (45.4)
                                                 1,3-Dichlorobenzene.....
Benzene, 1,4-dichloro-..............     106467  p-Dichlorobenzene.......     100                             1,2,3,4                             U072             B                  100 (45.4)
                                                 1,4-Dichlorobenzene.....
Benzene, 1,1'-(2,2-                       72548  DDD.....................       1                               1,2,4                             U060             X                   1 (0.454)
 dichloroethylidene)bis[4-chloro-                TDE.....................
                                                 4,4' DDD................
Benzene, dichloromethyl-............      98873  Benzal chloride.........      1*                                   4                             U017             D                 5000 (2270)
Benzene, 1,3-diisocyanatomethyl-....      91087  Toluene diisocyanate....      1*                                 3,4                             U223             B                  100 (45.4)
                                         584849  2,4-Toluene diisocyanate
                                       26471625
Benzene, dimethyl-..................    1330207  Xylene..................    1000                               1,3,4                             U239             B                  100 (45.4)
                                                 Xylene (mixed)..........
                                                 Xylenes (isomers and
                                                  mixture).
Benzene,m-dimethyl-.................     108383  m-Xylene................      1*                                   3                             ...............  C                  1000 (454)
Benzene, o-dimethyl-................      95476  o-Xylene................      1*                                   3                             ...............  C                  1000 (454)
Benzene, p-dimethyl-................     106423  p-Xylene................      1*                                   3                             ...............  B                  100 (45.4)
1,3-Benzenediol.....................     108463  Resorcinol..............    1000                                 1,4                             U201             D                 5000 (2270)
1,2-Benzenediol,4-[1-hydroxy-2-           51434  Epinephrine.............      1*                                   4                             P042             C                  1000 (454)
 (methylamino)ethyl]-
Benzeneethanamine, alpha,alpha-          122098  alpha,alpha-                  1*                                   4                             P046             D                 5000 (2270)
 dimethyl-.                                       Dimethylphenethylamine.
Benzene, hexachloro-................     118741  Hexachlorobenzene.......      1*                               2,3,4                             U127             A                   10 (4.54)
Benzene, hexahydro-.................     110827  Cyclohexane.............    1000                                 1,4                             U056             C                  1000 (454)
Benzene, hydroxy-...................     108952  Phenol..................    1000                             1,2,3,4                             U188             C                  1000 (454)
Benzene, methyl-....................     108883  Toluene.................    1000                             1,2,3,4                             U220             C                  1000 (454)
Benzene, 2-methyl-1,3-dinitro-......     606202  2,6-Dinitrotoluene......    1000                               1,2,4                             U106             B                  100 (45.4)
Benzene, 1-methyl-2,4-dinitro-......     121142  2,4-Dinitrotoluene......    1000                             1,2,3,4                             U105             A                   10 (4.54)
Benzene, (1-methylethyl)-...........      98828  Cumene..................      1*                                 3,4                             U055             D                 5000 (2270)
Benzene, nitro-.....................      98953  Nitrobenzene............    1000                             1,2,3,4                             U169             C                  1000 (454)
Benzene, pentachloro-...............     608935  Pentachlorobenzene......      1*                                   4                             U183             A                   10 (4.54)

[[Page 288]]


Benzene, pentachloronitro-..........      82688  PCNB....................      1*                                 3,4                             U185             B                  100 (45.4)
                                                 Pentachloronitrobenzene.
                                                 Quintobenzene...........
Benzenesulfonic acid chloride.......      98099  Benzenesulfonyl chloride      1*                                   4                             U020             B                  100 (45.4)
Benzenesulfonyl chloride............      98099  Benzenesulfonic acid          1*                                   4                             U020             B                  100 (45.4)
                                                  chloride.
Benzene, 1,2,4,5-tetrachloro-.......      95943  1,2,4,5-                      1*                                   4                             U207             D                 5000 (2270)
                                                  Tetrachlorobenzene.
Benzenethiol........................     108985  Thiophenol..............      1*                                   4                             P014             B                  100 (45.4)
Benzene, 1,1'-(2,2,2-tri-                 50293  DDT.....................       1                               1,2,4                             U061             X                   1 (0.454)
 chloroethylidene)bis[4-chloro-                  4,4'DDT.................
Benzene, 1,1'-(2,2,2-                     72435  Methoxychlor............       1                               1,3,4                             U247             X                   1 (0.454)
 trichloroethylidene) bis[4-methoxy-.
Benzene, (trichloromethyl)-.........      98077  Benzotrichloride........      1*                                 3,4                             U023             A                   10 (4.54)
Benzene, 1,3,5-trinitro-............      99354  1,3,5-Trinitrobenzene...      1*                                   4                             U234             A                   10 (4.54)
Benzidine...........................      92875  [1,1'-Biphenyl]-4,4'-         1*                               2,3,4                             U021             X                   1 (0.454)
                                                  diamine.
1,2-Benzisothiazol-3(2H)-one, 1,1-        81072  Saccharin and salts.....      1*                                   4                             U202             B                  100 (45.4)
 dioxide.
Benzo[a]anthracene..................      56553  Benz[a]anthracene.......      1*                                 2,4                             U018             A                   10 (4.54)
                                                 1,2-Benzanthracene......
Benzo[b]fluoranthene................     205992  ........................      1*                                   2                             ...............  X                   1 (0.454)
Benzo(k)fluoranthene................     207089  ........................      1*                                   2                             ...............  D                 5000 (2270)
Benzo[j,k]fluorene..................     206440  Fluoranthene............      1*                                 2,4                             U120             B                  100 (45.4)
1,3-Benzodioxol-4-ol, 2,2-dimethyl-,   22961826  ........................      1*                                   4                             U364             ...............  ]-          106514  2,5-Cyclohexadiene-1,4-       1*                                 3,4                             U197             A                   10 (4.54)
 Benzoquinone.                                    dione.
                                                 Quinone.................
Benzotrichloride....................      98077  Benzene,                      1*                                 3,4                             U023             A                   10 (4.54)
                                                  (trichloromethyl)-.
Benzoyl chloride....................      98884  ........................    1000                                   1                             ...............  C                  1000 (454)
1,2-Benzphenanthrene................     218019  Chrysene................      1*                                 2,4                             U050             B                  100 (45.4)

[[Page 289]]


Benzyl chloride.....................     100447  Benzene, chloromethyl-..     100                               1,3,4                             P028             B                  100 (45.4)
BERYLLIUM AND COMPOUNDS.............       N.A.  Beryllium Compounds.....      1*                                 2,3                             ...............  ...............            **
Beryllium Compounds.................       N.A.  BERYLLIUM AND COMPOUNDS.      1*                                 2,3                             ...............  ...............            **
Beryllium chloride..................    7787475  ........................    5000                                   1                             ...............  X                   1 (0.454)
Beryllium fluoride..................    7787497  ........................    5000                                   1                             ...............  X                   1 (0.454)
Beryllium nitrate...................   13597994  ........................    5000                                   1                             ...............  X                   1 (0.454)
                                        7787555
Beryllium powder [].
alpha--BHC..........................     319846  ........................      1*                                   2                             ...............  A                   10 (4.54)
beta--BHC...........................     319857  ........................      1*                                   2                             ...............  X                   1 (0.454)
delta--BHC..........................     319868  ........................      1*                                   2                             ...............  X                   1 (0.454)
[gamma]-BHC.........................      58899  Cyclohexane, 1,2,3,4,5,6-      1                             1,2,3,4                             U129             X                   1 (0.454)
                                                  hexa chloro- (1[alpha],
                                                  2[alpha],
                                                  3[beta],4[alpha],5[alph
                                                  a],6[beta])-.
                                                 Hexachlorocyclohexane
                                                  (gamma isomer).
                                                 Lindane.................
2,2'-Bioxirane......................    1464535  1,2:3,4-Diepoxybutane...      1*                                   4                             U085             A                   10 (4.54)
(1,1'-Biphenyl)-4,4'diamine.........      92875  Benzidine...............      1*                                 2,4                             U021             X                   1 (0.454)
[1,1'-Biphenyl]-                          91941  3,3'-Dichlorobenzidine..      1*                                 2,4                             U073             X                   1 (0.454)
 4,4'diamine,3,3'dichloro-.
[1,1'-Biphenyl]-                         119904  3,3'-Dimethoxybenzidine.      1*                                   4                             U091             B                  100 (45.4)
 4,4'diamine,3,3'dimethoxy-.
[1,1'Biphenyl]-4,4'-diamine,3,3'-        119937  3,3'-Dimethylbenzidine..      1*                                   4                             U095             A                   10 (4.54)
 dimethyl-.
Biphenyl............................      92524  ........................      1*                                   3                             ...............  B                  100 (45.4)
Bis (2-chloroethyl) ether...........     111444  Dichloroethyl ether.....      1*                                 2,4                             U025             A                   10 (4.54)
                                                 Ethane,1,1'-oxybis[2-
                                                  chloro-.
Bis(2-chloroethoxy) methane.........     111911  Dichloromethoxy ethane..      1*                                 2,4                             U024             C                  1000 (454)
                                                 Ethane, 1,1'-
                                                  [methylenebis(oxy)]bis(
                                                  2-chloro-.
Bis (2-ethylhexyl)phthalate.........     117817  Diethylhexyl phthalate..      1*                                 2,4                             U028             B                  100 (45.4)
                                                 1,2-Benzenedicarboxylic
                                                  acid, [bis(2-
                                                  ethylhexyl)] ester.
Bromoacetone........................     598312  2-Propanone, 1-bromo-...      1*                                   4                             P017             C                  1000 (454)
Bromoform...........................      75252  Methane, tribromo-......      1*                                 2,4                             U225             B                  100 (45.4)
4-Bromophenyl phenyl ether..........     101553  Benzene, 1-bromo-4-           1*                                 2,4                             U030             B                  100 (45.4)
                                                  phenoxy-.
Brucine.............................     357573  Strychnidin-10-one, 2,3-      1*                                   4                             P018             B                  100 (45.4)
                                                  dimethoxy-.
1,3-Butadiene, 1,1,2,3,4,4-               87683  Hexachlorobutadiene.....      1*                                 2,4                             U128             X                   1 (0.454)
 hexachloro-.
1,3-Butadiene.......................     106990  ........................      1*                                   3                             ...............  A                   10 (4.54)
1-Butanamine, N-butyl-N-nitroso-....     924163  N-Nitrosodi-n-butylamine      1*                                   4                             U172             A                   10 (4.54)
1-Butanol...........................      71363  n-Butyl alcohol.........      1*                                   4                             U031             D                 5000 (2270)
2-Butanone..........................      78933  MEK.....................      1*                                 3,4                             U159             D                 5000 (2270)
                                                 Methyl ethyl ketone.....
2-Butanone peroxide.................    1338234  Methyl ethyl ketone           1*                                   4                             U160             A                   10 (4.54)
                                                  peroxide.
2-Butanone, 3,3-dimethyl-1-            39196184  Thiofanox...............      1*                                   4                             P045             B                  100 (45.4)
 (methylthio)-,
 O[(methylamino)carbonyl] oxime.
2-Butenal...........................     123739  Crotonaldehyde..........     100                                 1,4                             U053             B                  100 (45.4)
                                        4170303
2-Butene, 1,4-dichloro-.............     764410  1,4-Dichloro-2-butene...      1*                                   4                             U074             X                   1 (0.454)
2-Butenoic acid, 2-methyl-, 7[[2,3-      303344  Lasiocarpine............      1*                                   4                             U143             A                   10 (4.54)
 dihydroxy-2-(1-methoxyethyl)-3-
 methyl-1-oxobutoxy]methyl]-2,3,5,7a-
 tetrahydro-1H-pyrrolizin-1-yl
 ester, [1S-
 [1alpha(Z),7(2S*,3R*),7aalpha]]-
Butyl acetate.......................     123864  ........................    5000                                   1                             ...............  D                 5000 (2270)
  iso-Butyl acetate.................     110190
  sec-Butyl acetate.................     105464

[[Page 290]]


  tert-Butyl acetate................     540885
n-Butyl alcohol.....................      71363  1-Butanol...............      1*                                   4                             U031             D                 5000 (2270)
Butylamine..........................     109739  ........................    1000                                   1                             ...............  C                  1000 (454)
  iso-Butylamine....................      78819
  sec-Butylamine....................     513495
                                       13952846
  tert-Butylamine...................      75649
Butyl benzyl phthalate..............      85687  ........................      1*                                   2                             ...............  B                  100 (45.4)
[eta]-Butyl phthalate...............      84742  1,2-Benzenedicarboxylic      100                             1,2,3,4                             U069             A                   10 (4.54)
                                                  acid, dibutyl ester.
                                                 Dibutyl phthalate.......
                                                 Di-n-butyl phthalate....
Butyric acid........................     107926  ........................    5000                                   1                             ...............  D                 5000 (2270)
  iso-Butyric acid..................      79312
Cacodylic acid......................      75605  Arsinic acid, dimethyl-.      1*                                   4                             U136             X                   1 (0.454)
Cadmium [    7440439  ........................      1*                                   2                             ...............  A                   10 (4.54)
 <].
Cadmium acetate.....................     543908  ........................     100                                   1                             ...............  A                   10 (4.54)
CADMIUM AND COMPOUNDS...............       N.A.  Cadmium Compounds.......      1*                                 2,3                             ...............  ...............            **
Cadmium Compounds...................       N.A.  CADMIUM AND COMPOUNDS...      1*                                 2,3                             ...............  ...............            **
Cadmium bromide.....................    7789426  ........................     100                                   1                             ...............  A                   10 (4.54)
Cadmium chloride....................   10108642  ........................     100                                   1                             ...............  A                   10 (4.54)
Calcium arsenate....................    7778441  ........................    1000                                   1                             ...............  X                   1 (0.454)
Calcium arsenite....................   52740166  ........................    1000                                   1                             ...............  X                   1 (0.454)
Calcium carbide.....................      75207  ........................    5000                                   1                             ...............  A                   10 (4.54)
Calcium chromate....................   13765190  Chromic acid H2 CrO4,       1000                                 1,4                             U032             A                   10 (4.54)
                                                  calcium salt.
Calcium cyanamide...................     156627  ........................      1*                                   3                             ...............  C                  1000 (454)
Calcium cyanide.....................     592018  Calcium cyanide Ca(CN)2.      10                                 1,4                             P021             A                   10 (4.54)
Calcium cyanide Ca(CN)2.............     592018  Calcium cyanide.........      10                                 1,4                             P021             A                   10 (4.54)
Calcium dodecylbenzenesulfonate.....   26264062  ........................    1000                                   1                             ...............  C                  1000 (454)
Calcium hypochlorite................    7778543  ........................     100                                   1                             ...............  A                   10 (4.54)
Camphene, octachloro-...............    8001352  Chlorinated camphene....       1                             1,2,3,4                             P123             X                   1 (0.454)
                                                 Toxaphene...............
Captan..............................     133062  ........................      10                                 1,3                             ...............  A                   10 (4.54)
Carbamic acid, [1-                     17804352  ........................      1*                                   4                             U271             ...............  2 CrO4, calcium salt..   13765190  Calcium chromate........    1000                                 1,4                             U032             A                   10 (4.54)
Chromic sulfate.....................   10101538  ........................    1000                                   1                             ...............  C                  1000 (454)
Chromium [].
CHROMIUM AND COMPOUNDS..............       N.A.  Chromium Compounds......      1*                                 2,3                             ...............  ...............            **
Chromium Compounds..................       N.A.  CHROMIUM AND COMPOUNDS..      1*                                 2,3                             ...............  ...............            **
Chromous chloride...................   10049055  ........................    1000                                   1                             ...............  C                  1000 (454)
Chrysene............................     218019  1,2-Benzphenanthrene....      1*                                 2,4                             U050             B                  100 (45.4)
Cobalt compounds....................       N.A.  ........................      1*                                   3                             ...............  ...............            **
Cobaltous bromide...................    7789437  ........................    1000                                   1                             ...............  C                  1000 (454)
Cobaltous formate...................     544183  ........................    1000                                   1                             ...............  C                  1000 (454)
Cobaltous sulfamate.................   14017415  ........................    1000                                   1                             ...............   C                 1000 (454)
Coke Oven Emissions.................       N.A.  ........................      1*                                   3                             ...............   X                  1 (0.454)
Copper [<    7440508  ........................      1*                                   2                             ...............   D                5000 (2270)
 g].
COPPER AND COMPOUNDS................       N.A.  ........................      1*                                   2                             ...............  ...............            **
Copper cyanide......................     544923   Copper cyanide CuCN....      1*                                   4                             P029             A                   10 (4.54)
Copper cyanide CuCN.................     544923  Copper cyanide..........      1*                                   4                             P029             A                   10 (4.54)
Coumaphos...........................      56724  ........................      10                                   1                             ...............  A                   10 (4.54)
Creosote............................    8001589  ........................      1*                                   4                             U051              X                  1 (0.454)
Cresols (isomers and mixture).......    1319773  Cresylic acid (isomers      1000                               1,3,4                             U052             B                  100 (45.4)
                                                  and mixture).
                                                 Phenol, methyl..........
m-Cresol............................     108394  m-Cresylic acid.........      1*                                   3                             ...............  B                  100 (45.4)
o-Cresol............................      95487  o-Cresylic acid.........      1*                                   3                             ...............  B                  100 (45.4)
p-Cresol............................     106445  p-Cresylic acid.........      1*                                   3                             ...............  B                  100 (45.4)
Cresylic acid (isomers and mixture).    1319773  Cresols (isomers and        1000                               1,3,4                             U052             B                  100 (45.4)
                                                  mixture).
                                                 Phenol, methyl..........
m-Cresylic acid.....................     108394  m-Cresol................      1*                                   3                             ...............  B                  100 (45.4)
o-Cresylic acid.....................      95487  o-Cresol................      1*                                   3                             ...............  B                  100 (45.4)
p-Cresylic acid.....................     106445  p-Cresol................      1*                                   3                             ...............  B                  100 (45.4)
Crotonaldehyde......................     123739  2-Butenal...............     100                                 1,4                             U053             B                  100 (45.4)
                                        4170303
Cumene..............................      98828  Benzene, (1-methylethyl)-     1*                                 3,4                             U055             D                 5000 (2270)
                                                  .
Cupric acetate......................     142712  ........................     100                                   1                             ...............  B                  100 (45.4)
Cupric acetoarsenite................   12002038  ........................     100                                   1                             ...............  X                   1 (0.454)
Cupric chloride.....................    7447394  ........................      10                                   1                             ...............   A                  10 (4.54)
Cupric nitrate......................    3251238  ........................     100                                   1                             ...............   B                 100 (45.4)
Cupric oxalate......................    5893663  ........................     100                                   1                             ...............  B                  100 (45.4)
Cupric sulfate......................    7758987  ........................      10                                   1                             ...............  A                   10 (4.54)
Cupric sulfate, ammoniated..........   10380297  ........................     100                                   1                             ...............   B                 100 (45.4)
Cupric tartrate.....................     815827  ........................     100                                   1                             ...............  B                  100 (45.4)
Cyanide Compounds...................       N.A.  CYANIDES................      1*                                 2,3                             ...............  ...............            **
CYANIDES............................       N.A.  Cyanide Compounds.......      1*                                 2,3                             ...............  ...............            **
Cyanides (soluble salts and               57125  ........................      1*                                   4                             P030             A                   10 (4.54)
 complexes) not otherwise specified
Cyanogen............................     460195   Ethanedinitrile........      1*                                   4                             P031              B                 100 (45.4)
Cyanogen bromide....................     506683  Cyanogen bromide (CN)Br.      1*                                   4                              U246            C                  1000 (454)
Cyanogen bromide (CN)Br.............     506683  Cyanogen bromide........      1*                                   4                             U246              C                 1000 (454)
Cyanogen chloride...................     506774  Cyanogen chloride (CN)Cl      10                                 1,4                             P033             A                   10 (4.54)

[[Page 294]]


Cyanogen chloride (CN)Cl............     506774  Cyanogen chloride.......      10                                 1,4                             P033             A                   10 (4.54)
2,5-Cyclohexadiene-1,4-dione........     106514  p-Benzoquinone..........      1*                                 3,4                             U197             A                   10 (4.54)
                                                 Quinone.................
Cyclohexane.........................     110827  Benzene, hexahydro-.....    1000                                 1,4                             U056             C                  1000 (454)
Cyclohexane, 1,2,3,4,5,6-hexachloro-      58899  [gamma]-BHC.............       1                             1,2,3,4                             U129             X                   1 (0.454)
 ,                                               Hexachlorocyclohexane
 (1[alpha],2[alpha],3[beta],4[alpha]              (gamma isomer).
 ,5[alpha],6[beta])-.                            Lindane.................
                                                 Lindane (all isomers)...
Cyclohexanone.......................     108941  ........................      1*                                   4                             U057              D                5000 (2270)
2-Cyclohexyl-4,6-dinitrophenol......     131895  Phenol, 2-cyclohexyl-4,6-     1*                                   4                             P034             B                  100 (45.4)
                                                  dinitro-.
1,3-Cyclopentadiene, 1,2,3,4,5,5-         77474  Hexachlorocyclopentadien       1                             1,2,3,4                             U130             A                   10 (4.54)
 hexachloro-.                                     e.
Cyclophosphamide....................      50180  2H-1,3,2-Oxazaphosphorin-     1*                                   4                             U058             A                   10 (4.54)
                                                  2-amine,
                                                 N,N-bis(2-
                                                  chloroethyl)tetrahydro-
                                                  ,2-oxide.
2,4-D Acid..........................      94757  Acetic acid, (2,4-           100                               1,3,4                             U240             B                  100 (45.4)
                                                  dichlorophenoxy)-,
                                                  salts & esters.
                                                 2,4-D, salts and esters.
2,4-D Ester.........................      94111  ........................     100                                   1                             ...............  B                  100 (45.4)
                                          94791
                                          94804
                                        1320189
                                        1928387
                                        1928616
                                        1929733
                                        2971382
                                       25168267
                                       53467111
2,4-D salts and esters..............      94757  Acetic acid, (2,4-           100                               1,3,4                             U240             B                  100 (45.4)
                                                  dichlorophenoxy)-,
                                                  salts & esters.
                                                 2,4-D Acid..............
Daunomycin..........................   20830813  5,12-Naphthacenedione, 8-     1*                                   4                             U059             A                   10 (4.54)
                                                  acetyl-10-[3-amino-
                                                  2,3,6- trideoxy-alpha-L-
                                                  lyxo-hexo-
                                                  pyranosyl)oxy]-7,8,9,10-
                                                   tetrahydro-6,8,11-
                                                  trihydroxy-1-methoxy-,
                                                  (8S-cis)-.
DDD.................................      72548  Benzene, 1,1'-(2,2-            1                               1,2,4                             U060             X                   1 (0.454)
                                                  dichloroethylidene)bis[
                                                  4-chloro-.
                                                 TDE.....................
                                                 4,4' DDD................
4,4' DDD............................      72548  Benzene, 1,1'-(2,2-            1                               1,2,4                             U060             X                   1 (0.454)
                                                  dichloroethylidene)bis[
                                                  4-chloro-
                                                 DDD.....................
                                                 TDE.....................

[[Page 295]]


DDE.................................      72559  4,4'-DDE................      1*                                 2,3                             ...............  X                   1 (0.454)
4,4'-DDE............................      72559  DDE.....................      1*                                 2,3                             ...............  X                   1 (0.454)
DDE \b\.............................    3547044  ........................      1*                                   3                             ...............  D                 5000 (2270)
DDT.................................      50293  Benzene, 1,1'-(2,2,2-          1                               1,2,4                             U061             X                   1 (0.454)
                                                  trichloroethylidene)bis
                                                  [4-chloro-
                                                 4,4'DDT.................
4,4'DDT.............................      50293  Benzene, 1,1'-(2,2,2-          1                               1,2,4                             U061             X                   1 (0.454)
                                                  trichloroethylidene)bis
                                                  [4-chloro-
                                                 DDT.....................
DDT AND METABOLITES.................       N.A.  ........................      1*                                   2                             ...............  ...............            **
DEHP................................     117817  1,2-Benzenedicarboxylic       1*                               2,3,4                             U028             B                  100 (45.4)
                                                  acid, bis(2-ethyl-
                                                  hexyl) ester.
                                                 Bis(2-
                                                  ethylhexyl)phthalate.
                                                 Diethylhexyl phthalate..
Diallate............................    2303164  Carbamothioic acid,           1*                                   4                             U062             B                  100 (45.4)
                                                  bis(1-methylethyl)-, S-
                                                  (2,3-dichloro-2-
                                                  propenyl) ester.
Diazinon............................     333415  ........................       1                                   1                             ...............  X                   1 (0.454)
Diazomethane........................     334883  ........................      1*                                   3                             ...............  B                  100 (45.4)
Dibenz[a,h]anthracene...............      53703  Dibenzo[a,h]anthracene        1*                                 2,4                             U063             X                   1 (0.454)
                                                 1,2:5,6-Dibenzanthracene
1,2:5,6-Dibenzanthracene............      53703  Dibenz[a,h]anthracene         1*                                 2,4                             U063             X                   1 (0.454)
                                                 Dibenzo[a,h]anthracene..
Dibenzo[a,h]anthracene..............      53703  Dibenz[a,h]anthracene         1*                                 2,4                             U063             X                   1 (0.454)
                                                 ,2:5,6-Dibenzanthracene.
Dibenz[a,i]pyrene...................     189559  Benzo[rst]pentaphene....      1*                                   4                             U064             A                   10 (4.54)
Dibenzofuran........................     132649  ........................      1*                                   3                             ...............  B                  100 (45.4)
1,2-Dibromo-3-chloropropane.........      96128  Propane, 1,2-dibromo-3-       1*                                 3,4                             U066             X                   1 (0.454)
                                                  chloro-.
Dibromoethane.......................     106934  Ethane, 1,2-dibromo-....    1000                               1,3,4                             U067             X                   1 (0.454)
                                                 Ethylene dibromide......
Dibutyl phthalate...................      84742  1,2-Benzenedicarboxylic      100                             1,2,3,4                             U069             A                   10 (4.54)
                                                  acid, dibutyl ester.
                                                 n-Butyl phthalate.......
                                                 Di-n-butyl phthalate....
Di-n-butyl phthalate................      84742  1,2-Benzenedicarboxylic      100                             1,2,3,4                             U069             A                   10 (4.54)
                                                  acid, dibutyl ester.
                                                 n-Butyl phthalate.......
                                                 Dibutyl phthalate.......
Dicamba.............................    1918009  ........................    1000                                   1                             ...............  C                  1000 (454)
Dichlobenil.........................    1194656  ........................    1000                                   1                             ...............  B                  100 (45.4)
Dichlone............................     117806  ........................       1                                   1                             ...............  X                   1 (0.454)
Dichlorobenzene.....................   25321226  ........................     100                                   1                             ...............  B                  100 (45.4)
1,2-Dichlorobenzene.................      95501  Benzene, 1,2-dichloro- o-    100                               1,2,4                             U070             B                  100 (45.4)
                                                  Dichlorobenzene.
1,3-Dichlorobenzene.................     541731  Benzene, 1,3-dichloro m-      1*                                 2,4                             U071             B                  100 (45.4)
                                                  Dichlorobenzene.
1,4-Dichlorobenzene.................     106467  Benzene, 1,4-dichloro-..     100                             1,2,3,4                             U072             B                  100 (45.4)
                                                 p-Dichlorobenzene.......
m-Dichlorobenzene...................     541731  Benzene, 1,3-dichloro         1*                                 2,4                             U071             B                  100 (45.4)
                                                  1,3-Dichlorobenzene.
o-Dichlorobenzene...................      95501  Benzene, 1,2-dichloro        100                               1,2,4                             U070             B                  100 (45.4)
                                                  1,2-Dichlorobenzene.
p-Dichlorobenzene...................     106467  Benzene, 1,4-dichloro-..     100                             1,2,3,4                             U072             B                  100 (45.4)
                                                 1,4-Dichlorobenzene.....
DICHLOROBENZIDINE...................       N.A.  ........................      1*                                   2                             ...............  ...............            **
3,3'-Dichlorobenzidine..............      91941  [1,1'-Biphenyl]-4,4'-          *                               2,3,4                             U073             X                   1 (0.454)
                                                  diamine,3,3'-dichloro-.
Dichlorobromomethane................      75274  ........................      1*                                   2                             ...............  D                 5000 (2270)

[[Page 296]]


1,4-Dichloro-2-butene...............     764410  2-Butene, 1,4-dichloro-.      1*                                   4                             U074             X                   1 (0.454)
Dichlorodifluoromethane.............      75718  Methane,                      1*                                   4                             U075             D                 5000 (2270)
                                                  dichlorodifluoro-.
1,1-Dichloroethane..................      75343  Ethane, 1,1-dichloro-...      1*                               2,3,4                             U076             C                  1000 (454)
                                                 Ethylidene dichloride...
1,2-Dichloroethane..................     107062  Ethane, 1,2-dichloro-...    5000                             1,2,3,4                             U077             B                  100 (45.4)
                                                 Ethylene dichloride.....
1,1-Dichloroethylene................      75354  Ethene, 1,1-dichloro-...    5000                             1,2,3,4                             U078             B                  100 (45.4)
                                                 Vinylidene chloride.....
1,2-Dichloroethylene................     156605  Ethene, 1,2-dichloro-         1*                                 2,4                             U079             C                  1000 (454)
                                                  (E).
Dichloroethyl ether.................     111444  Bis(2-chloroethyl) ether      1*                               2,3,4                             U025             A                   10 (4.54)
                                                 Ethane, 1,1'-oxybis[2-
                                                  chloro-.
Dichloroisopropyl ether.............     108601  Propane, 2,2'-oxybis[2-       1*                                 2,4                             U027             C                  1000 (454)
                                                  chloro-.
Dichloromethane.....................      75092  Methane, dichoro-.......      1*                               2,3,4                             U080             C                  1000 (454)
                                                 Methylene chloride......
Dichloromethoxy ethane..............     111911  Bis(2-chloroethoxy)           1*                                 2,4                             U024             C                  1000 (454)
                                                  methane
                                                 Ethane, 1,1'-
                                                  [methylenebis(oxy)]bis(
                                                  2-chloro-.
Dichloromethyl ether................     542881  Bis(chloromethyl) ether.      1*                                 3,4                             P016             A                   10 (4.54)
                                                 Methane, oxybis(chloro-.
2,4-Dichlorophenol..................     120832  Phenol, 2,4-dichloro-...      1*                                 2,4                             U081             B                  100 (45.4)
2,6-Dichlorophenol..................      87650  Phenol, 2,6-dichloro-...      1*                                   4                             U082             B                   100(45.4)
Dichlorophenylarsine................     696286  Arsonous dichloride,          1*                                   4                             P036             X                   1 (0.454)
                                                  phenyl-.
Dichloropropane.....................   26638197  ........................    5000                                   1                             ...............  C                  1000 (454)
  1,1-Dichloropropane...............      78999
  1,3-Dichloropropane...............     142289
1,2-Dichloropropane.................      78875  Propane, 1,2-dichloro-..    5000                            1,2,3,4,                             U083             C                  1000 (454)
                                                 Propylene dichloride....
Dichloropropane--Dichloropropene        8003198  ........................    5000                                   1                             ...............  B                  100 (45.4)
 (mixture)
Dichloropropene.....................   26952238  ........................    5000                                   1                             ...............  B                  100 (45.4)
  2,3-Dichloropropene...............      78886
1,3-Dichloropropene.................     542756  1-Propene, 1,3-dichloro-    5000                             1,2,3,4                             U084             B                  100 (45.4)
2,2-Dichloropropionic acid..........      75990  ........................    5000                                   1                             ...............  D                 5000 (2270)
Dichlorvos..........................      62737  ........................      10                                 1,3                             ...............  A                   10 (4.54)
Dicofol.............................     115322  ........................    5000                                   1                             ...............  A                   10 (4.54)
Dieldrin............................      60571  2,7:3,6-                       1                               1,2,4                             P037             X                   1 (0.454)
                                                  Dimethanonaphth[2,3-
                                                  b]oxirene, 3,4,5,6,9,9-
                                                  hexachloro-
                                                  1a,2,2a,3,6,6a,7,7a-
                                                  octahydro-,
                                                  (1aalpha,2beta,2aalpha,
                                                  3beta,6beta,
                                                  6aalpha,7beta, 7aalpha)-
                                                  .
1,2:3,4-Diepoxybutane...............    1464535  2,2'-Bioxirane..........      1*                                   4                             U085             A                   10 (4.54)
Diethanolamine......................     111422  ........................      1*                                   3                             ...............  B                  100 (45.4)
Diethylamine........................     109897  ........................    1000                                   1                             ...............  B                 100 (454.4)

[[Page 297]]


N,N-Diethylaniline..................      91667  ........................      1*                                   3                             ...............  C                  1000 (454)
Diethylarsine.......................     692422  Arsine, diethyl-........      1*                                   4                             P038             X                   1 (0.454)
1,4-Diethylenedioxide...............     123911  1,4-Dioxane.............      1*                                 3,4                             U108             B                  100 (45.4)
                                                 1,4-Diethyleneoxide.....
1,4-Diethyleneoxide.................     123911  1,4-Dioxane.............      1*                                 3,4                             U108             B                  100 (45.4)
                                                 1,4-Diethylenedioxide...
Diethylhexyl phthalate..............     117817  1,2-Benzenedicarboxylic       1*                               2,3,4                             U028             B                  100 (45.4)
                                                  acid, bis(2-ethylhexyl)
                                                  ester.
                                                 Bis(2-
                                                  ethylhexyl)phthalate
                                                  DEHP.
N,N'-Diethylhydrazine...............    1615801  Hydrazine, 1,2-diethyl-.      1*                                   4                             U086             A                   10 (4.54)
O,O-Diethyl S-methyl dithiophosphate    3288582  Phosphorodithioic acid,       1*                                   4                             U087             D                 5000 (2270)
                                                  O,O-diethyl S-methyl
                                                  ester.
Diethyl-p-nitrophenyl phosphate.....     311455  Phosphoric acid, diethyl      1*                                   4                             P041             B                  100 (45.4)
                                                  4-nitrophenyl ester.
Diethyl phthalate...................      84662  1,2-Benzenedicarboxylic       1*                                 2,4                             U088             C                  1000 (454)
                                                  acid, diethyl ester.
O,O-Diethyl O-pyrazinyl                  297972  Phosphorothioic acid,         1*                                   4                             P040             B                  100 (45.4)
 phosphorothioate.                                O,O-diethyl O-pyrazinyl
                                                  ester.
Diethylstilbestrol..................      56531  Phenol, 4,4'-(1,2-            1*                                   4                             U089             X                   1 (0.454)
                                                  diethyl-1,2-
                                                  ethenediyl)bis-, (E).
Diethyl sulfate.....................      64675  ........................      1*                                   3                             ...............  A                   10 (4.54)
Dihydrosafrole......................      94586  1,3-Benzodioxole, 5-          1*                                   4                             U090             A                   10 (4.54)
                                                  propyl-.
Diisopropylfluorophosphate..........      55914  Phosphorofluoridic acid,      1*                                   4                             P043             B                  100 (45.4)
                                                  bis(1-methylethyl)
                                                  ester.
1,4,5,8-Dimethanonaphthalene,            309002  Aldrin..................       1                               1,2,4                             P004             X                   1 (0.454)
 1,2,3,4,10,10-10-hexachloro-
 1,4,4a,5,8,8a-hexahydro-,
 (1alpha,4alpha,4abeta,5alpha,8alpha
 ,
8abeta)-1,4,5,8-                         465736  Isodrin.................      1*                                   4                             P060             X                   1 (0.454)
 Dimethanonaphthalene, 1,2,3,4,10,10-
 hexachloro-1,4,4a,5,8,8a-hexahydro,
 (1alpha,4alpha,4abeta,5abeta,8beta,
8abeta)-2,7:3,6-Dimethanonaphth[2,3-      60571  Dieldrin................       1                               1,2,4                             P037             X                   1 (0.454)
 b]oxirene, 3,4,5,6,9,9-hexachloro-
 1a,2,2a,3,6,6a,7,7a-octahydro-,
 (1aalpha,2beta,2aalpha,3beta,6beta,
6aalpha,7beta,7aalpha)-2,7:3,6-           72208  Endrin                         1                               1,2,4                             P051             X                   1 (0.454)
 Dimethanonaphth[2,3-b]oxirene,                   Endrin, & metabolites..
 3,4,5,6,9,9-hexachloro-
 1a,2,2a,3,6,6a,7,7a-octa-hydro-,
 (1aalpha,2beta,2abeta,3alpha,6alpha
 ,
6abeta,7beta,7aalpha)-Dimethoate....      60515  Phosphorodithioic acid,       1*                                   4                             P044             A                   10 (4.54)
                                                  O,O-dimethyl S-
                                                  [2(methylamino)-2-
                                                  oxoethyl] ester.
3,3'-Dimethoxybenzidine.............     119904  [1,1'-Biphenyl]-4,4'-         1*                                 3,4                             U091             B                  100 (45.4)
                                                  diamine,3,3'-dimethoxy-.
                                                 ........................
Dimethylamine.......................     124403  Methanamine, N-methyl-..    1000                                 1,4                             U092             C                  1000 (454)
Dimethyl aminoazobenzene............      60117  Benzenamine, N,N-             1*                                 3,4                             U093             A                   10 (4.54)
                                                  dimethyl-4-(phenylazo-).
                                                 P-
                                                  Dimethylaminoazobenzene.
p-Dimethylaminoazobenzene...........      60117  Benzenamine, N,N-             1*                                 3,4                             U093             A                   10 (4.54)
                                                  dimethyl-4-(phenylazo-).
                                                 Dimethyl aminoazobenzene
N,N-Dimethylaniline.................     121697  ........................      1*                                   3                             ...............  B                  100 (45.4)
7,12-Dimethylbenz[a]anthracene......      57976  Benz[a]anthracene, 7,12-      1*                                   4                             U094             X                   1 (0.454)
                                                  dimethyl-.
3,3'-Dimethylbenzidine..............     119937  [1,1'-Biphenyl]-4,4'-         1*                                 3,4                             U095             A                   10 (4.54)
                                                  diamine,3,3'-dimethyl-.
alpha,alpha-                              80159  Hydroperoxide, 1-methyl-      1*                                   4                             U096             A                   10 (4.54)
 Dimethylbenzylhydroperoxide.                     1-phenylethyl-.
Dimethylcarbamoyl chloride..........      79447  Carbamic chloride,            1*                                 3,4                             U097             X                   1 (0.454)
                                                  dimethyl-.
                                                 ........................
Dimethylformamide...................      68122  ........................      1*                                   3                             ...............  B                  100 (45.4)
1,1-Dimethylhydrazine...............      57147  Hydrazine, 1,1-dimethyl-      1*                                 3,4                             U098             A                   10 (4.54)
1,2-Dimethylhydrazine...............     540738  Hydrazine, 1,2-dimethyl-      1*                                   4                             U099             X                   1 (0.454)
alpha,alpha-Dimethylphenethylamine..     122098  Benzeneethanamine,            1*                                   4                             P046             D                 5000 (2270)
                                                  alpha,alpha-dimethyl-.
2,4-Dimethylphenol..................     105679  Phenol, 2,4-dimethyl-...      1*                                 2,4                             U101             B                  100 (45.4)

[[Page 298]]


Dimethyl phthalate..................     131113  1,2-Benzenedicarboxylic       1*                               2,3,4                             U102             D                 5000 (2270)
                                                  acid, dimethyl ester.
                                                 ........................
Dimethyl sulfate....................      77781  Sulfuric acid, dimethyl       1*                                 3,4                             U103             B                  100 (45.4)
                                                  ester.
                                                 ........................
Dinitrobenzene (mixed)..............   25154545  ........................    1000                                   1                             ...............  B                  100 (45.4)
  m-Dinitrobenzene..................      99650
  o-Dinitrobenzene..................     528290
  p-Dinitrobenzene..................     100254
4,6-Dinitro-o-cresol, and salts.....     534521  Phenol, 2-methyl-4,6-         1*                               2,3,4                             P047             A                   10 (4.54)
                                                  dinitro-, & salts.
Dinitrophenol.......................   25550587  ........................    1000                                   1                             ...............  A                   10 (4.54)
  2,5-Dinitrophenol.................     329715
  2,6-Dinitrophenol.................     573568
2,4-Dinitrophenol...................      51285  Phenol, 2,4-dinitro-....    1000                            1,2,3,4,                             P048             A                   10 (4.54)
Dinitrotoluene......................   25321146  ........................    1000                                 1,2                             ...............  A                   10 (4.54)
  3,4-Dinitrotoluene................     610399
2,4-Dinitrotoluene..................     121142  Benzene, 1-methyl-2,4-      1000                             1,2,3,4                             U105             A                   10 (4.54)
                                                  dinitro-.
2,6-Dinitrotoluene..................     606202  Benzene, 2-methyl-1,3-      1000                               1,2,4                             U106             B                  100 (45.4)
                                                  dinitro-.
Dinoseb.............................      88857  Phenol, 2-(1-                 1*                                   4                             P020             C                  1000 (454)
                                                  methylpropyl)-4,6-
                                                  dinitro.
Di-n-octyl phthalate................     117840  1,2-Benzenedicarboxylic       1*                                 2,4                             U107             D                 5000 (2270)
                                                  acid, dioctyl ester.
1,4-Dioxane.........................     123911  1,4-Diethyleneoxide.....      1*                                 3,4                             U108             B                  100 (45.4)
                                                 1,4-Diethlyenedioxide...
DIPHENYLHYDRAZINE...................       N.A.  ........................      1*                                   2                             ...............  ...............            **
1,2-Diphenyl-.......................     122667  Hydrazine, 1,2-diphenyl-      1*                               2,3,4                             U109             A                    10(4.54)
hydrazine...........................
Diphosphoramide, octamethyl-........     152169  Octamethylpyrophosphoram      1*                                   4                             P085             B                  100 (45.4)
                                                  ide.
Diphosphoric acid, tetraethyl ester.     107493  Tetraethyl pyrophosphate     100                                 1,4                             P111             A                   10 (4.54)
Dipropylamine.......................     142847  1-Propanamine, N-propyl-      1*                                   4                             U110             D                 5000 (2270)
Di-n-propylnitrosamine..............     621647  1-Propanamine, N-nitroso-     1*                                 2,4                             U111             A                   10 (4.54)
                                                  N-propyl-.
Diquat..............................      85007  ........................    1000                                   1                             ...............  C                  1000 (454)
                                        2764729
Disulfoton..........................     298044  Phosphorodithioic acid,        1                                 1,4                             P039             X                   1 (0.454)
                                                  o,o-diethyl S-[2-
                                                  (ethylthio)ethyl]ester.
Dithiobiuret........................     541537  Thioimidodicarbonic           1*                                   4                             P049             B                  100 (45.4)
                                                  diamide [(HG2KN)
                                                  C(S)]2NH...............
1,3-Dithiolane-2-carboxaldehyde, 2,4-  26419738  ........................      1*                                   4                             P185             ...............