Mich. Admin. Code R. 325.51108 - Tables
Rule 8. Tables G-1-A and G-2 read as follows:
TABLE G-1-A. EXPOSURE LIMITS FOR AIR CONTAMINANTS |
||||||||
TWA |
STELD |
Ceiling |
||||||
Substance |
CAS No.A |
ppmB |
mg/m3C |
ppmB |
mg/m3C |
ppmB |
mg/m3C |
Skin Designation |
Abate |
- |
15 |
- |
- |
- |
- |
- |
|
Acetaldehyde |
75-07-0 |
100 |
180 |
150 |
270 |
- |
- |
- |
Acetic acid |
64-19-7 |
10 |
25 |
- |
- |
- |
- |
- |
Acetic anhydride |
108-24-7 |
- |
- |
- |
- |
5 |
20 |
- |
Acetone |
67-64-1 |
750 |
1800 |
1000 |
2400 |
- |
- |
- |
Acetonitrile |
75-05-8 |
40 |
70 |
60 |
105 |
- |
- |
- |
2-Acetylaminofluorine; see GI Part 350. CarcinogensF |
53-96-3 |
|||||||
Acetylene dichloride; see 1,2-Dichloroethylene |
||||||||
Acetylene tetrabromide |
79-27-6 |
1 |
14 |
- |
- |
- |
- |
- |
Acetylsalicylic acid (Aspirin) |
50-78-2 |
- |
5 |
- |
- |
- |
- |
- |
Acrolein |
107-02-8 |
0.1 |
0.25 |
0.3 |
0.8 |
- |
- |
- |
Acrylamide |
79-06-1 |
- |
0.03 |
- |
- |
- |
- |
x |
Acrylic acid |
79-10-7 |
10 |
30 |
- |
- |
- |
- |
x |
Acrylonitrile; see GI & CS Part 307. AcrylonitrileF |
107-13-1 |
2 |
4.34 |
10 |
21.7 |
- |
- |
- |
Aldrin |
309-00-2 |
- |
0.25 |
- |
- |
- |
- |
x |
Allyl alcohol |
107-18-6 |
2 |
5 |
4 |
10 |
- |
- |
x |
Allyl chloride |
107-05-1 |
1 |
3 |
2 |
6 |
- |
- |
- |
Allyl glycidyl ether (AGE) |
106-92-3 |
5 |
22 |
10 |
44 |
- |
- |
- |
Allyl propyl disulfide |
2179-59-1 |
2 |
12 |
3 |
18 |
- |
- |
- |
[][ALPHA] Alumina (aluminum oxide) Respirable fraction Total dust |
1344-28-1 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Aluminum (as Al) Alkyls Metal Respirable dust Total dust Pyro powders Soluble salts Welding fumes* |
7429-90-5 |
- - - - - - |
2 5 15 5 2 5 |
- - - - - - |
- - - - - - |
- - - - - - |
- - - - - - |
- - - - - - |
4-Aminodiphenyl; see GI Part 350. CarcinogensF |
92-67-1 |
|||||||
2-Aminoethanol; see Ethanolamine |
||||||||
2-Aminopyridine |
504-29-0 |
0.5 |
2 |
- |
- |
- |
- |
- |
Amitrole |
61-82-5 |
- |
0.2 |
- |
- |
- |
- |
- |
Ammonia |
7664-41-7 |
- |
- |
35 |
24 |
- |
- |
- |
Ammonium chloride fume |
12125-02-9 |
- |
10 |
- |
20 |
- |
- |
- |
Ammonium sulfamate Respirable dust Total dust |
7773-06-0 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
n-Amyl acetate |
628-63-7 |
100 |
525 |
- |
- |
- |
- |
- |
sec-Amyl acetate |
626-38-0 |
125 |
650 |
- |
- |
- |
- |
- |
Aniline and homologues |
62-53-3 |
2 |
8 |
- |
- |
- |
- |
x |
Anisidine (o- and p-isomers) |
29191-52-4 |
- |
0.5 |
- |
- |
- |
- |
x |
Antimony and compounds (as Sb) |
7440-36-0 |
- |
0.5 |
- |
- |
- |
- |
- |
ANTU (alpha-naphthylthiourea) |
86-88-4 |
- |
0.3 |
- |
- |
- |
- |
- |
Arsenic, organic compounds (as As) |
7440-38-2 |
- |
0.5 |
- |
- |
- |
- |
- |
Arsenic, inorganic compounds (as As); see GI & CS Part 308. Inorganic ArsenicF |
7440-38-2 |
0.01 |
||||||
Arsine |
7784-42-1 |
0.05 |
0.2 |
- |
- |
- |
- |
- |
TWA |
STELD |
|||||||
Asbestos; see OH Part 305. Asbestos for General IndustryF |
Varies |
0.1f/cc |
- |
|||||
ppmB |
mg/m3C |
ppmB |
mg/m3C |
ppmB |
mg/m3C |
Skin Designation |
||
Atrazine |
1912-24-9 |
- |
5 |
- |
- |
- |
- |
- |
Azinphos-methyl |
86-50-0 |
- |
0.2 |
- |
- |
- |
- |
x |
Barium, soluble compounds (as Ba) |
7440-39-3 |
- |
0.5 |
- |
- |
- |
- |
- |
Barium sulfate Respirable dust Total dust |
7727-43-7 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Benomyl Respirable dust Total dust |
17804-35-2 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
BenzeneE; see GI & CS Part 311. BenzeneF and TABLE G-2 for limits applicable in the operations or sectors excluded in R 325.77101E |
71-43-2 |
1 |
3.19 |
5 |
15.97 |
|||
Benzidine; see GI Part 350. CarcinogensF |
92-87-5 |
|||||||
p-Benzoquinone; see Quinone |
||||||||
Benzo(a)pyrene; see Coal tar pitch volatiles |
||||||||
Benzoyl peroxide |
94-36-0 |
- |
5 |
- |
- |
- |
- |
- |
Benzyl chloride |
100-44-7 |
1 |
5 |
- |
- |
- |
- |
- |
Beryllium and beryllium compounds (as Be) see GI Part 340. Beryllium |
7440-41-7 |
- |
0.0002 (0.2 µg/m3) |
- |
0.002 (2.0 µg/m3) |
- |
- |
- |
Biphenyl; see Diphenyl |
||||||||
Bismuth telluride, Undoped Respirable dust Total dust |
1304-82-1 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Bismuth telluride, Se-doped |
- |
5 |
- |
- |
- |
- |
- |
|
Borates, Tetra, Sodium Salts Anhydrous Decahydrate Pentahydrate |
1330-43-4 1303-96-4 12179-04-3 |
- - - |
10 10 10 |
- - - |
- - - |
- - - |
- - - |
- - - |
Boron oxide, Total dust |
1303-86-2 |
- |
10 |
- |
- |
- |
- |
- |
Boron tribromide |
10294-33-4 |
- |
- |
- |
- |
1 |
10 |
- |
Boron trifluoride |
7637-07-2 |
- |
- |
- |
- |
1 |
3 |
- |
Bromacil |
314-40-9 |
1 |
10 |
- |
- |
- |
- |
- |
Bromine |
7726-95-6 |
0.1 |
0.7 |
0.3 |
2 |
- |
- |
- |
Bromine pentafluoride |
7789-30-2 |
0.1 |
0.7 |
- |
- |
- |
- |
- |
Bromoform |
75-25-2 |
0.5 |
5 |
- |
- |
- |
- |
- |
1,3-Butadiene; see OH Part 312. 1,3-ButadieneF |
106-99-0 |
1 |
2.2 |
5 |
11.1 |
- |
- |
- |
Butane |
106-97-8 |
800 |
1900 |
- |
- |
- |
- |
- |
Butanethiol; see Butyl mercaptan |
||||||||
2-Butanone (Methyl ethyl ketone) |
78-93-3 |
200 |
590 |
300 |
885 |
- |
- |
- |
2-Butoxyethanol |
111-76-2 |
25 |
120 |
- |
- |
- |
- |
x |
n-Butyl acetate |
123-86-4 |
150 |
710 |
200 |
950 |
- |
- |
- |
sec-Butyl acetate |
105-46-4 |
200 |
950 |
- |
- |
- |
- |
- |
tert-Butyl acetate |
540-88-5 |
200 |
950 |
- |
- |
- |
- |
- |
Butyl acrylate |
141-32-2 |
10 |
55 |
- |
- |
- |
- |
- |
nButyl alcohol (n-butanol) |
71-36-3 |
- |
- |
- |
- |
50 |
150 |
x |
sec-Butyl alcohol (sec-butanol) |
78-92-2 |
100 |
305 |
- |
- |
- |
- |
- |
tert-Butyl alcohol (tert-butanol) |
75-65-0 |
100 |
300 |
150 |
450 |
- |
- |
- |
Butylamine |
109-73-9 |
- |
- |
- |
- |
5 |
15 |
x |
tert-Butyl chromate (as Cr+6); see OH Part 315. Chromium (VI) in General IndustryF,G |
1189-85-1 |
- |
0.005 (5 µg/m3) |
- |
- |
- |
- |
x |
n-Butyl glycidyl ether (BGE) |
2426-08-6 |
25 |
135 |
- |
- |
- |
- |
- |
n-Butyl lactate |
138-22-7 |
5 |
25 |
- |
- |
- |
- |
- |
Butyl mercaptan |
109-79-5 |
0.5 |
1.5 |
- |
- |
- |
- |
- |
o-sec-Butylphenol |
89-72-5 |
5 |
30 |
- |
- |
- |
- |
x |
p-tert-Butyltoluene |
98-51-1 |
10 |
60 |
20 |
120 |
- |
- |
- |
Cadmium; see GI Part 309. Cadmium in General IndustryF |
7440-43-9 |
- |
0.005 |
- |
- |
- |
- |
- |
Calcium carbonate, Respirable dust Total dust |
1317-65-3 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Calcium cyanamide |
156-62-7 |
- |
0.5 |
- |
- |
- |
- |
- |
Calcium hydroxide |
1305-62-0 |
- |
5 |
- |
- |
- |
- |
- |
Calcium oxide |
1305-78-8 |
- |
5 |
- |
- |
- |
- |
- |
Calcium silicate, Respirable dust Total dust |
1344-95-2 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Calcium sulfate, Respirable dust Total dust |
7778-18-9 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Camphor, synthetic |
76-22-2 |
- |
2 |
- |
- |
- |
- |
- |
Caprolactam, Dust Vapor |
105-60-2 |
- 5 |
1 20 |
- 10 |
3 40 |
- - |
- - |
- - |
Captafol (DifolatanR) |
2425-06-1 |
- |
0.1 |
- |
- |
- |
- |
- |
Captan |
133-06-2 |
- |
5 |
- |
- |
- |
- |
- |
Carbaryl (SevinR) |
63-25-2 |
- |
5 |
- |
- |
- |
- |
- |
Carbofuran (FuradanR) |
1563-66-2 |
- |
0.1 |
- |
- |
- |
- |
- |
Carbon black |
1333-86-4 |
- |
3.5 |
- |
- |
- |
- |
- |
Carbon dioxide |
124-38-9 |
5,000 |
9,000 |
30,00 0 |
54,000 |
- |
- |
- |
Carbon disulfide |
75-15-0 |
4 |
12 |
12 |
36 |
- |
- |
x |
Carbon monoxide |
630-08-0 |
35 |
40 |
- |
- |
200 |
229 |
- |
Carbon tetrabromide |
558-13-4 |
0.1 |
1.4 |
0.3 |
4 |
- |
- |
- |
Carbon tetrachloride (Tetrachloromethane) |
56-23-5 |
2 |
12.6 |
- |
- |
- |
- |
x |
Carbonyl fluoride |
353-50-4 |
2 |
5 |
5 |
15 |
- |
- |
- |
Catechol (Pyrocatechol) |
120-80-9 |
5 |
20 |
- |
- |
- |
- |
x |
Cellulose, Respirable dust Total dust |
9004-34-6 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Cesium hydroxide |
21351-79-1 |
- |
2 |
- |
- |
- |
- |
- |
Chlordane |
57-74-9 |
- |
0.5 |
- |
- |
- |
- |
x |
Chlorinated camphene (Toxaphone) |
8001-35-2 |
- |
0.5 |
- |
1 |
- |
- |
x |
Chlorinated diphenyl oxide |
55720-99-5 or 31242-93-0 |
- |
0.5 |
- |
- |
- |
- |
- |
Chlorine |
7782-50-5 |
0.5 |
1.5 |
1 |
3 |
- |
- |
- |
Chlorine dioxide |
10049-04-4 |
0.1 |
0.3 |
0.3 |
0.9 |
- |
- |
- |
Chlorine trifluoride |
7790-91-2 |
- |
- |
- |
- |
0.1 |
0.4 |
- |
Chloroacetaldehyde |
107-20-0 |
- |
- |
- |
- |
1 |
3 |
- |
2-Chloroacetophenone (Phenacyl chloride) |
532-27-4 |
0.5 |
0.3 |
- |
- |
- |
- |
- |
Chloroacetyl chloride |
79-04-9 |
0.5 |
0.2 |
- |
- |
- |
- |
- |
Chlorobenzene |
108-90-7 |
75 |
350 |
- |
- |
- |
- |
- |
o-Chlorobenzylidene malononitrile |
2698-41-1 |
- |
- |
- |
- |
0.05 |
0.4 |
x |
Chlorobromomethane |
74-97-5 |
200 |
1050 |
- |
- |
- |
- |
- |
2-Chloro-1,3-butadiene; see [BETA][]-Chloroprene |
||||||||
Chlorodifluoromethane |
75-45-6 |
1000 |
3500 |
- |
- |
- |
- |
- |
Chlorodiphenyl (42% Chlorine) (PCB) |
53469-21-9 |
- |
1 |
- |
- |
- |
- |
x |
Chlorodiphenyl (54% Chlorine) (PCB) |
11097-69-1 |
- |
0.5 |
- |
- |
- |
- |
x |
1-Chloro-2,3-epoxy propane; see Epichlorohydrin |
||||||||
2-Chloroethanol; see Ethylene chlorohydrin |
||||||||
Chloroethylene; see Vinyl chloride |
||||||||
Chloroform (Trichloromethane) |
67-66-3 |
2 |
9.78 |
- |
- |
- |
- |
- |
bis (Chloromethyl) ether; GI Part 350. CarcinogensF |
542-88-1 |
|||||||
Chloromethyl methyl ether; see GI Part 350. CarcinogensF |
107-30-2 |
|||||||
1-Chloro-1-nitropropane |
600-25-9 |
4 |
10 |
- |
- |
- |
- |
- |
Chloropentafluoroethane |
76-15-3 |
1000 |
6320 |
- |
- |
- |
- |
- |
Chloropicrin |
76-06-2 |
0.1 |
0.7 |
- |
- |
- |
- |
- |
beta-Chloroprene |
126-99-8 |
10 |
35 |
- |
- |
- |
- |
x |
o-Chlorostyrene |
2039-87-4 |
50 |
285 |
75 |
428 |
- |
- |
- |
o-Chlorotoluene |
95-49-8 |
50 |
250 |
- |
- |
- |
- |
- |
2-Chloro-6-(trichloromethyl) pyridine, Respirable dust Total dust |
1929-82-4 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Chlorpyrifos |
2921-88-2 |
- |
0.2 |
- |
- |
- |
- |
x |
Chromic acid and chromates (as Cr+6); see OH Part 315. Chromium (VI) in General IndustryF,G |
Varies with compound |
- |
0.005 (5 µg/m3) |
- |
- |
- |
- |
- |
Chromium (II) compounds (as Cr) |
7440-47-3 |
- |
0.5 |
- |
- |
- |
- |
- |
Chromium (III) compounds (as Cr) |
7440-47-3 |
- |
0.5 |
- |
- |
- |
- |
- |
Chromium (VI) compounds; see OH Part 315. Chromium (VI) in General IndustryF,G |
Varies with compound |
- |
(5 µg/m3) |
- |
- |
- |
- |
- |
Chromium metal (as Cr) |
7440-47-3 |
- |
1 |
- |
- |
- |
- |
- |
Chrysene; see Coal tar pitch volatile |
||||||||
Clopidol Respirable dust Total dust |
2971-90-6 |
- |
5 15 |
- |
- |
- |
- |
- |
Coal dust (less than 5% SiO2) Respirable dust |
- |
- |
2 |
- |
- |
- |
- |
- |
Coal dust (greater than or equal to 5% SiO2), Respirable dust |
- |
- |
0.1 |
- |
- |
- |
- |
- |
Coal tar pitch volatile (as benzene solubles) anthracene, BaP, phenanthrene, acridine, crysene, pyrene |
65996-93-2 |
- |
0.2 |
- |
- |
- |
- |
- |
Cobalt metal, dust, and fume (as Co) |
7440-48-4 |
- |
0.05 |
- |
- |
- |
- |
- |
Cobalt carbonyl (as Co) |
10210-68-1 |
- |
0.1 |
- |
- |
- |
- |
- |
Cobalt hydrocarbonyl (as Co) |
16842-03-8 |
- |
0.1 |
- |
- |
- |
- |
- |
Coke oven emissions; see GI & CS Part 314. Coke Oven EmissionsF |
- |
- |
0.15 (150 µg/m3) |
- |
- |
- |
- |
- |
Copper, Dusts and mists (as Cu) Fume (as Cu) |
7440-50-8 |
- - |
1 0.1 |
- - |
- - |
- - |
- - |
- - |
Cotton dust (raw) |
- |
- |
1 |
- |
- |
- |
- |
- |
Crag herbicide (Sesone) Total dust Respirable fraction |
136-78-7 |
- - |
10 5 |
- - |
- - |
- - |
- - |
- - |
Cresol, all isomers |
1319-77-3 |
5 |
22 |
- |
- |
- |
- |
x |
Crotonaldehyde |
123-73-9 4170-30-3 |
2 |
6 |
- |
- |
- |
- |
- |
Crufomate |
299-86-5 |
- |
5 |
- |
- |
- |
- |
- |
Cumene |
98-82-8 |
50 |
245 |
- |
- |
- |
- |
x |
Cyanamide |
420-04-2 |
- |
2 |
- |
- |
- |
- |
- |
Cyanides (as CN) |
Varies with compound |
- |
5 |
- |
- |
- |
- |
x |
Cyanogen |
460-19-5 |
10 |
20 |
- |
- |
- |
- |
- |
Cyanogen chloride |
506-77-4 |
- |
- |
- |
- |
0.3 |
0.6 |
- |
Cyclohexane |
110-82-7 |
300 |
1050 |
- |
- |
- |
- |
- |
Cyclohexanol |
108-93-0 |
50 |
200 |
- |
- |
- |
- |
x |
Cyclohexanone |
108-94-1 |
25 |
100 |
- |
- |
- |
- |
x |
Cyclohexene |
110-83-8 |
300 |
1015 |
- |
- |
- |
- |
- |
Cyclohexylamine |
108-91-8 |
10 |
40 |
- |
- |
- |
- |
- |
Cyclonite |
121-82-4 |
- |
1.5 |
- |
- |
- |
- |
x |
Cyclopentadiene |
542-92-7 |
75 |
200 |
- |
- |
- |
- |
- |
Cyclopentane |
287-92-3 |
600 |
1720 |
- |
- |
- |
- |
- |
Cyhexatin |
13121-70-5 |
- |
5 |
- |
- |
- |
- |
- |
2,4-D (Dichlorophenoxyacetic acid) |
94-75-7 |
- |
10 |
- |
- |
- |
- |
- |
Decaborane |
17702-41-9 |
0.05 |
0.3 |
0.15 |
0.9 |
- |
- |
x |
Demeton (SystoxR) |
8065-48-3 |
- |
0.1 |
- |
- |
- |
- |
x |
Diacetone alcohol (4-Hydroxy-4-methyl-2-pentanone) |
123-42-2 |
50 |
240 |
- |
- |
- |
- |
- |
1,2-Diaminoethane; see Ethylenediamine |
||||||||
Diazinon |
333-41-5 |
- |
0.1 |
- |
- |
- |
- |
x |
Diazomethane |
334-88-3 |
0.2 |
0.4 |
- |
- |
- |
- |
- |
Diborane |
19287-45-7 |
0.1 |
0.1 |
- |
- |
- |
- |
- |
2-N-Dibutylaminoethanol |
102-81-8 |
2 |
14 |
- |
- |
- |
- |
- |
Dibutyl phosphate |
107-66-4 |
1 |
5 |
2 |
10 |
- |
- |
- |
Dibutyl phthalate |
84-74-2 |
- |
5 |
- |
- |
- |
- |
- |
Dichloroacetylene |
7572-29-4 |
- |
- |
- |
- |
0.1 |
0.4 |
- |
o-Dichlorobenzene |
95-50-1 |
- |
- |
- |
- |
50 |
300 |
- |
p-Dichlorobenzene |
106-46-7 |
75 |
450 |
110 |
675 |
- |
- |
- |
3,3'-Dichlorobenzidine; see GI Part 350. CarcinogensF |
91-94-1 |
|||||||
Dichlorodifluoromethane |
75-71-8 |
1000 |
4950 |
- |
- |
- |
- |
- |
1,3-Dichloro-5,5-dimethyl hydantoin |
118-52-5 |
- |
0.2 |
- |
0.4 |
- |
- |
- |
Dichlorodiphenyltri-chloroethane (DDT) |
50-29-3 |
- |
1 |
- |
- |
- |
- |
x |
1,1-Dichloroethane |
75-34-3 |
100 |
400 |
- |
- |
- |
- |
- |
1,2-Dichloroethylene |
540-59-0 |
200 |
790 |
- |
- |
- |
- |
- |
Dichloroethyl ether |
111-44-4 |
5 |
30 |
10 |
60 |
- |
- |
x |
Dichlorofluoromethane |
75-43-4 |
10 |
40 |
- |
- |
- |
- |
- |
Dichloromethane; see Methylene chloride |
||||||||
1,1-Dichloro-1-nitroethane |
594-72-9 |
2 |
10 |
- |
- |
- |
- |
- |
1,2-Dichloropropane; see Propylene dichloride |
||||||||
1,3-Dichloropropene |
542-75-6 |
1 |
5 |
- |
- |
- |
- |
x |
2,2-Dichloropropionic acid |
75-99-0 |
1 |
6 |
- |
- |
- |
- |
- |
Dichlorotetrafluoroethane |
76-14-2 |
1000 |
7000 |
- |
- |
- |
- |
- |
Dichlorvos (DDVP) |
62-73-7 |
- |
1 |
- |
- |
- |
- |
x |
Dicrotophos |
141-66-2 |
- |
0.25 |
- |
- |
- |
- |
x |
Dicyclopentadiene |
77-73-6 |
5 |
30 |
- |
- |
- |
- |
- |
Dicyclopentadienyl iron, Respirable dust Total dust |
102-54-5 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Dieldrin |
60-57-1 |
- |
0.25 |
- |
- |
- |
- |
X |
Diethanolamine |
111-42-2 |
3 |
15 |
- |
- |
- |
- |
- |
Diethylamine |
109-89-7 |
10 |
30 |
25 |
75 |
- |
- |
- |
2-Diethylaminoethanol |
100-37-8 |
10 |
50 |
- |
- |
- |
- |
X |
Diethylene triamine |
111-40-0 |
1 |
4 |
- |
- |
- |
- |
X |
Diethyl ether; see Ethyl ether |
||||||||
Diethyl ketone |
96-22-0 |
200 |
705 |
- |
- |
- |
- |
- |
Diethyl phthalate |
84-66-2 |
- |
5 |
- |
- |
- |
- |
- |
Difluorodibromomethane |
75-61-6 |
100 |
860 |
- |
- |
- |
- |
- |
Diglycidyl ether (DGE) |
2238-07-5 |
0.1 |
0.5 |
- |
- |
- |
- |
- |
Dihydroxybenzene; see Hydroquinone |
||||||||
Diisobutyl ketone |
108-83-8 |
25 |
150 |
- |
- |
- |
- |
- |
Diisopropylamine |
108-18-9 |
5 |
20 |
- |
- |
- |
- |
X |
4-Dimethylaminoazobenzene; see GI Part 350. CarcinogensF |
60-11-7 |
|||||||
Dimethoxymethane; see Methylal |
||||||||
Dimethyl acetamide |
127-19-5 |
10 |
35 |
- |
- |
- |
- |
X |
Dimethylamine |
124-40-3 |
10 |
18 |
- |
- |
- |
- |
- |
Dimethylaminobenzene; see Xylidine |
||||||||
Dimethylaniline (N,N-Dimethylaniline) |
121-69-7 |
5 |
25 |
10 |
50 |
- |
- |
X |
Dimethylbenzene; see Xylene |
||||||||
Dimethyl-l,2-dibromo-2,2-dichloroethyl phosphate |
300-76-5 |
- |
3 |
- |
- |
- |
- |
X |
Dimethylformamide |
68-12-2 |
10 |
30 |
- |
- |
- |
- |
X |
2,6-Dimethyl-4-heptanone; see Diisobutyl ketone |
||||||||
1,1 -Dimethylhydrazine |
57-14-7 |
0.5 |
1 |
- |
- |
- |
- |
X |
Dimethylphthalate |
131-11-3 |
- |
5 |
- |
- |
- |
- |
- |
Dimethyl sulfate |
77-78-1 |
0.1 |
0.5 |
- |
- |
- |
- |
X |
Dinitolmide (3,5-Dinitro-o-toluamide) |
148-01-6 |
- |
5 |
- |
- |
- |
- |
- |
Dinitrobenzene (all isomers) (meta-) (ortho) (para-) |
99-65-0 528-29-0 100-25-4 |
- |
1 |
- |
- |
- |
- |
X |
Dinitro-o-cresol |
534-52-1 |
- |
0.2 |
- |
- |
- |
- |
X |
Dinitrotoluene |
25321-14-6 |
- |
1.5 |
- |
- |
- |
- |
X |
Dioxane (Diethylene dioxide) |
123-91-1 |
25 |
90 |
- |
- |
- |
- |
x |
Dioxathion (Delnav) |
78-34-2 |
- |
0.2 |
- |
- |
- |
- |
x |
Diphenyl (Biphenyl) |
92-52-4 |
0.2 |
1 |
- |
- |
- |
- |
- |
Diphenylamine |
122-39-4 |
- |
10 |
- |
- |
- |
- |
- |
Diphenylmethane diisocyanate; see Methylene bisphenyl isocyanate |
||||||||
Dipropylene glycol methyl ether |
34590-94-8 |
100 |
600 |
150 |
900 |
- |
- |
x |
Dipropyl ketone |
123-19-3 |
50 |
235 |
- |
- |
- |
- |
- |
Diquat |
2768-72-9 |
- |
0.5 |
- |
- |
- |
- |
- |
Di-sec-octyl phthalate [Di(2-ethylhexyl) phthalate] |
117-81-7 |
- |
5 |
- |
10 |
- |
- |
- |
Disulfiram |
97-77-8 |
- |
2 |
- |
- |
- |
- |
- |
Disulfoton |
298-04-4 |
- |
0.1 |
- |
- |
- |
- |
x |
2,6-Di-tert-butyl-p-cresol (Butylated hydroxytoluene) |
128-37-0 |
- |
10 |
- |
- |
- |
- |
- |
Diuron |
330-54-1 |
- |
10 |
- |
- |
- |
- |
- |
Divinyl benzene |
1321-74-0 |
10 |
50 |
- |
- |
- |
- |
- |
Emery, Respirable dust Total dust |
1302-74-5 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Endosulfan |
115-29-7 |
- |
0.1 |
- |
- |
- |
- |
x |
Endrin |
72-20-8 |
- |
0.1 |
- |
- |
- |
- |
x |
Epichlorohydrin |
106-89-8 |
2 |
8 |
- |
- |
- |
- |
x |
EPN |
2104-64-5 |
- |
0.5 |
- |
- |
- |
- |
x |
1,2-Epoxypropane; see Propylene oxide |
||||||||
2,3-Epoxy-1-propanol; see Glycidol |
||||||||
Ethanethiol; see Ethyl mercaptan |
||||||||
Ethanolamine |
141-43-5 |
3 |
8 |
6 |
15 |
- |
- |
- |
Ethion |
563-12-2 |
- |
0.4 |
- |
- |
- |
- |
x |
2-Ethoxyethanol (EGEE) |
110-80-5 |
200 |
740 |
- |
- |
- |
- |
x |
2-Ethoxyethyl acetate (Cellosolve acetate) |
111-15-9 |
100 |
540 |
- |
- |
- |
- |
x |
Ethyl acetate |
141-78-6 |
400 |
1400 |
- |
- |
- |
- |
- |
Ethyl acrylate |
140-88-5 |
5 |
20 |
25 |
100 |
- |
- |
x |
Ethyl alcohol (Ethanol) |
64-17-5 |
1000 |
1900 |
- |
- |
- |
- |
- |
Ethylamine |
75-04-7 |
10 |
18 |
- |
- |
- |
- |
- |
Ethyl amyl ketone (5-Methyl-3-heptanone) |
541-85-5 |
25 |
130 |
- |
- |
- |
- |
- |
Ethyl benzene |
100-41-4 |
100 |
435 |
125 |
545 |
- |
- |
- |
Ethyl bromide |
74-96-4 |
200 |
890 |
250 |
1100 |
- |
- |
- |
Ethyl butyl ketone (3-Heptanone) |
106-35-4 |
50 |
230 |
- |
- |
- |
- |
- |
Ethyl chloride |
75-00-3 |
1000 |
2600 |
- |
- |
- |
- |
- |
Ethyl ether |
60-29-7 |
400 |
1200 |
500 |
1500 |
- |
- |
- |
Ethyl formate |
109-94-4 |
100 |
300 |
- |
- |
- |
- |
- |
Ethyl mercaptan |
75-08-1 |
0.5 |
1 |
- |
- |
- |
- |
- |
Ethyl silicate |
78-10-4 |
10 |
85 |
- |
- |
- |
- |
- |
Ethylene chlorohydrin |
107-07-3 |
- |
- |
- |
- |
1 |
3 |
x |
Ethylenediamine |
107-15-3 |
10 |
25 |
- |
- |
- |
- |
- |
Ethylene dibromide |
106-93-4 |
See table G-2 |
||||||
Ethylene dichloride |
107-06-2 |
1 |
4 |
2 |
8 |
- |
- |
- |
Ethylene glycol |
107-21-1 |
- |
- |
- |
- |
50 |
125 |
- |
Ethylene glycol dinitrate (EGDN) |
628-96-6 |
- |
- |
- |
0.1 |
- |
- |
x |
Ethylene glycol methyl acetate (EGME); see Methyl cellosolve acetate |
||||||||
Ethyleneimine; see GI Part 350. CarcinogensF |
151-56-4 |
|||||||
Ethylene oxide; see GI & CS Part 304. Ethylene OxideF |
75-21-8 |
1 |
1.8 |
5 |
9.0 |
- |
- |
- |
Ethylidene chloride; see 1,1-Dichloroethane |
||||||||
Ethylidene norbornene |
16219-75-3 |
- |
- |
- |
- |
5 |
25 |
- |
N-Ethylmorpholine |
100-74-3 |
5 |
23 |
- |
- |
- |
- |
x |
Fenamiphos |
22224-92-6 |
- |
0.1 |
- |
- |
- |
- |
x |
Fensulfothion (Dasanit) |
115-90-2 |
- |
0.1 |
- |
- |
- |
- |
- |
Fenthion |
55-38-9 |
- |
0.2 |
- |
- |
- |
- |
x |
Ferbam, Dust |
14484-64-1 |
- |
10 |
- |
- |
- |
- |
- |
Ferrovanadium dust |
12604-58-9 |
- |
1 |
- |
3 |
- |
- |
- |
Fluorides (as F) |
Varies with compound |
- |
2.5 |
- |
- |
- |
- |
- |
Fluorine |
7782-41-4 |
0.1 |
0.2 |
- |
- |
- |
- |
- |
Fluorotrichloromethane (Trichlorofluoromethane) |
75-69-4 |
- |
- |
- |
- |
1000 |
5600 |
- |
Fonofos |
944-22-9 |
- |
0.1 |
- |
- |
- |
- |
x |
Formaldehyde; see GI & CS Part 306. FormaldehydeF |
50-00-0 |
0.75 |
0.9 |
2 |
2.5 |
|||
Formamide |
75-12-7 |
20 |
30 |
30 |
45 |
- |
- |
- |
Formic acid |
64-18-6 |
5 |
9 |
- |
- |
- |
- |
- |
Furfural |
98-01-1 |
2 |
8 |
- |
- |
- |
- |
x |
Furfuryl alcohol |
98-00-0 |
10 |
40 |
15 |
60 |
- |
- |
x |
Gasoline |
8006-61-9 |
300 |
900 |
500 |
1500 |
- |
- |
- |
Germanium tetrahydride |
7782-65-2 |
0.2 |
0.6 |
- |
- |
- |
- |
- |
Glutaraldehyde |
111-30-8 |
- |
- |
- |
- |
0.2 |
0.8 |
- |
Glycerin, Respirable mist Total mist |
56-81-5 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Glycidol |
556-52-5 |
25 |
75 |
- |
- |
- |
- |
- |
Glycol monoethyl ether; see 2-Ethoxyethanol |
||||||||
Grain dust (Oat, wheat, barley) |
- |
- |
10 |
- |
- |
- |
- |
- |
Graphite, natural Respirable dust |
7782-42-5 |
- |
2.5 |
- |
- |
- |
- |
- |
Graphite, synthetic, Respirable dust Total dust |
- |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
GuthionR; see Azinphos methyl |
||||||||
Gypsum, Respirable dust Total dust |
13397-24-5 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Hafnium |
7440-58-6 |
- |
0.5 |
- |
- |
- |
- |
- |
Heptachlor |
76-44-8 |
- |
0.5 |
- |
- |
- |
- |
x |
Heptane (n-Heptane) |
142-82-5 |
400 |
1600 |
500 |
2000 |
- |
- |
- |
Hexachlorobutadiene |
87-68-3 |
- |
0.02 |
0.24 |
- |
- |
- |
- |
Hexachlorocyclopentadiene |
77-47-4 |
0.01 |
0.1 |
- |
- |
- |
- |
- |
Hexachloroethane |
67-72-1 |
1 |
10 |
- |
- |
- |
- |
x |
Hexachloronaphthalene |
1335-87-1 |
- |
0.2 |
- |
- |
- |
- |
x |
Hexafluoroacetone |
684-16-2 |
0.1 |
0.7 |
- |
- |
- |
- |
x |
n-Hexane |
110-54-3 |
50 |
180 |
- |
- |
- |
- |
- |
Hexane isomers |
Varies with compound |
500 |
1800 |
1000 |
3600 |
- |
- |
- |
2-Hexanone (Methyl n-butyl ketone) |
591-78-6 |
5 |
20 |
- |
- |
- |
- |
- |
Hexone (Methyl isobutyl ketone) |
108-10-1 |
50 |
205 |
75 |
300 |
- |
- |
- |
sec-Hexyl acetate |
108-84-9 |
50 |
300 |
- |
- |
- |
- |
- |
Hexylene glycol |
107-41-5 |
- |
- |
- |
- |
25 |
125 |
- |
Hydrazine |
302-01-2 |
0.1 |
0.1 |
- |
- |
- |
- |
x |
Hydrogenated terphenyls |
61788-32-7 |
0.5 |
5 |
- |
- |
- |
- |
- |
Hydrogen bromide |
10035-10-6 |
- |
- |
- |
- |
3 |
10 |
- |
Hydrogen chloride |
7647-01-0 |
- |
- |
- |
- |
5 |
7 |
- |
Hydrogen cyanide |
74-90-8 |
- |
- |
4.7 |
5 |
- |
- |
x |
Hydrogen fluoride (as F) |
7664-39-3 |
3 |
- |
6 |
- |
- |
- |
- |
Hydrogen peroxide |
7722-84-1 |
1 |
1.4 |
- |
- |
- |
- |
- |
Hydrogen selenide (as Se) |
7783-07-5 |
0.05 |
0.2 |
- |
- |
- |
- |
- |
Hydrogen sulfide |
7783-06-4 |
10 |
14 |
15 |
21 |
- |
- |
- |
Hydroquinone |
123-31-9 |
- |
2 |
- |
- |
- |
- |
- |
2-Hydroxypropyl acrylate |
999-61-1 |
0.5 |
3 |
- |
- |
- |
- |
x |
Indene |
95-13-6 |
10 |
45 |
- |
- |
- |
- |
- |
Indium and compounds (as In) |
7440-74-6 |
- |
0.1 |
- |
- |
- |
- |
- |
Iodine |
7553-56-2 |
- |
- |
- |
- |
0.1 |
1 |
- |
Iodoform |
75-47-8 |
0.6 |
10 |
- |
- |
- |
- |
- |
Iron oxide fume |
1309-37-1 |
- |
10 |
- |
- |
- |
- |
- |
Iron pentacarbonyl (as Fe) |
13463-40-6 |
0.1 |
0.8 |
0.2 |
1.6 |
- |
- |
- |
Iron salts (soluble) (as Fe) |
Varies with compound |
- |
1 |
- |
- |
- |
- |
- |
Isoamyl acetate |
123-92-2 |
100 |
525 |
- |
- |
- |
- |
- |
Isoamyl alcohol (primary and secondary) |
123-51-3 |
100 |
360 |
125 |
450 |
- |
- |
- |
Isobutyl acetate |
110-19-0 |
150 |
700 |
- |
- |
- |
- |
- |
Isobutyl alcohol |
78-83-1 |
50 |
150 |
- |
- |
- |
- |
- |
Isooctyl alcohol |
26952-21-6 |
50 |
270 |
- |
- |
- |
- |
x |
Isophorone |
78-59-1 |
4 |
23 |
- |
- |
- |
- |
- |
Isophorone diisocyanate (IPDI) |
4098-71-9 |
0.005 |
- |
0.02 |
- |
- |
- |
x |
2-Isopropoxyethanol |
109-59-1 |
25 |
105 |
- |
- |
- |
- |
- |
Isopropyl acetate |
108-21-4 |
250 |
950 |
310 |
1185 |
- |
- |
- |
Isopropyl alcohol |
67-63-0 |
400 |
980 |
500 |
1225 |
- |
- |
- |
Isopropylamine |
75-31-0 |
5 |
12 |
10 |
24 |
- |
- |
- |
N-Isopropylaniline |
768-52-5 |
2 |
10 |
- |
- |
- |
- |
x |
Isopropyl ether |
108-20-3 |
500 |
2100 |
- |
- |
- |
- |
- |
Isopropyl glycidyl ether (IGE) |
4016-14-2 |
50 |
240 |
75 |
360 |
- |
- |
- |
Kaolin, Respirable dust Total dust |
- - |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Ketene |
463-51-4 |
0.5 |
0.9 |
1.5 |
3 |
- |
- |
- |
Lead inorganic (as Pb); see GI Part 310. Lead in General IndustryF |
7439-92-1 |
- |
0.05 (50 µg/m3) |
- |
- |
- |
- |
- |
Limestone, (calcium carbonate) Respirable dust Total dust |
1317-65-3 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Lindane |
58-89-9 |
- |
0.5 |
- |
- |
- |
- |
x |
Lithium hydride |
7580-67-8 |
- |
0.025 |
- |
- |
- |
- |
- |
L.P.G. (Liquified petroleum gas) |
68476-85-7 |
1000 |
1800 |
- |
- |
- |
- |
- |
Magnesite, Respirable dust Total dust |
546-93-0 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Magnesium oxide fume, Total particulate |
1309-48-4 |
- |
10 |
- |
- |
- |
- |
- |
Malathion dust |
121-75-5 |
- |
10 |
- |
- |
- |
- |
x |
Maleic anhydride |
108-31-6 |
1 |
- |
- |
- |
- |
- |
- |
Manganese, Compounds (as Mn) Fume (as Mn) |
7439-96-5 |
- - |
- 1 |
- - |
- 3 |
- - |
5 - |
- - |
Manganese cyclopentadienyl tricarbonyl (as Mn) |
12079-65-1 |
- |
0.1 |
- |
- |
- |
- |
x |
Manganese tetroxide (as Mn) |
1317-35-7 |
- |
1 |
- |
- |
- |
- |
- |
Marble (calcium carbonate), Respirable dust Total dust |
1317-65-3 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Mercury Inorganic and aryl compounds (As Hg) Organic compounds (as Hg) Vapor (as Hg) |
7439-97-6 |
- - - |
- 0.01 0.05 |
- - |
- 0.03 - |
- - - |
0.1 - - |
x x x |
Mesityl oxide |
141-79-7 |
15 |
60 |
25 |
100 |
- |
- |
- |
Methacrylic acid |
79-41-4 |
20 |
70 |
- |
- |
- |
- |
x |
Methanethiol; see Methyl mercaptan |
||||||||
Methomyl (Lannate) |
16752-77-5 |
- |
2.5 |
- |
- |
- |
- |
- |
Methoxychlor dust |
72-43-5 |
- |
10 |
- |
- |
- |
- |
- |
2-Methoxyethanol; see Methyl cellosolve |
||||||||
4-Methoxyphenol |
150-76-5 |
- |
5 |
- |
- |
- |
- |
- |
Methyl acetate |
79-20-9 |
200 |
610 |
250 |
760 |
- |
- |
- |
Methyl acetylene (Propyne) |
74-99-7 |
1000 |
1650 |
- |
- |
- |
- |
- |
Methyl acetylene-propadiene mixture (MAPP) |
- |
1000 |
1800 |
1250 |
2250 |
- |
- |
- |
Methyl acrylate |
96-33-3 |
10 |
35 |
- |
- |
- |
- |
x |
Methylacrylonitrile |
126-98-7 |
1 |
3 |
- |
- |
- |
- |
x |
Methylal (Dimethoxymethane) |
109-87-5 |
1000 |
3100 |
- |
- |
- |
- |
- |
Methyl alcohol |
67-56-1 |
200 |
260 |
250 |
325 |
- |
- |
x |
Methylamine |
74-89-5 |
10 |
12 |
- |
- |
- |
- |
- |
Methyl amyl alcohol; see Methyl isobutyl carbinol |
||||||||
Methyl n-amyl ketone |
110-43-0 |
100 |
465 |
- |
- |
- |
- |
- |
Methyl bromide |
74-83-9 |
5 |
20 |
- |
- |
- |
- |
x |
Methyl n-butyl ketone; see 2-Hexanone |
||||||||
Methyl cellosolve (2-Methoxyethanol) |
109-86-4 |
25 |
80 |
- |
- |
- |
- |
x |
Methyl cellosolve acetate (2-Methoxyethyl acetate) |
110-49-6 |
25 |
120 |
- |
- |
- |
- |
x |
Methyl chloride |
74-87-3 |
50 |
105 |
100 |
210 |
- |
- |
- |
Methyl chloroform (1,1,1-Trichloroethane) |
71-55-6 |
350 |
1900 |
450 |
2450 |
- |
- |
- |
Methyl 2-cyanoacrylate |
137-05-3 |
2 |
8 |
4 |
16 |
- |
- |
- |
Methylcyclohexane |
108-87-2 |
400 |
1600 |
- |
- |
- |
- |
- |
Methylcyclohexanol |
25639-42-3 |
50 |
235 |
- |
- |
- |
- |
- |
o-Methylcyclohexanone |
583-60-8 |
50 |
230 |
75 |
345 |
- |
- |
x |
Methylcyclopentadienyl manganese tricarbonyl (as Mn) |
12108-13-3 |
- |
0.2 |
- |
- |
- |
- |
x |
Methyl demeton |
8022-00-2 |
- |
0.5 |
- |
- |
- |
- |
x |
4,4'-Methylene bis(2-chloroaniline) (MBOCA) |
101-14-4 |
0.02 |
0.22 |
- |
- |
- |
- |
x |
Methylene bis(4-cyclohexylisocyanate) (MCBI) |
5124-30-1 |
- |
- |
- |
- |
0.01 |
0.11 |
- |
Methylene bisphenyl isocyanate (MDI) |
101-68-8 |
- |
- |
- |
- |
0.02 |
0.2 |
- |
Methylene chloride, see OH Part 313. Methylene ChlorideF |
75-09-2 |
25 |
87 |
125 |
434 |
- |
- |
- |
Methylenedianiline (MDA); see GI Part 303. Methylenedianiline (MDA) in General IndustryF |
101-77-9 |
10 ppb** |
0.08 mg/m3 |
100 ppb** |
0.8 mg/m3 |
- |
- |
- |
Methyl ethyl ketone (MEK); see 2-Butanone |
||||||||
Methyl ethyl ketone peroxide (MEKP) |
1338-23-4 |
- |
- |
- |
- |
0.7 |
5 |
- |
Methyl formate |
107-31-3 |
100 |
250 |
150 |
375 |
- |
- |
- |
Methyl hydrazine |
60-34-4 |
- |
- |
- |
- |
0.2 |
0.35 |
x |
Methyl iodide |
74-88-4 |
2 |
10 |
- |
- |
- |
- |
x |
Methyl isoamyl ketone |
110-12-3 |
50 |
240 |
- |
- |
- |
- |
- |
Methyl isobutyl carbinol |
108-11-2 |
25 |
100 |
40 |
165 |
- |
- |
x |
Methyl isobutyl ketone; see Hexone |
||||||||
Methyl isocyanate (MIC) |
624-83-9 |
0.02 |
0.05 |
- |
- |
- |
- |
x |
Methyl isopropyl ketone |
563-80-4 |
200 |
705 |
- |
- |
- |
- |
- |
Methyl mercaptan |
74-93-1 |
0.5 |
1 |
- |
- |
- |
- |
- |
Methyl methacrylate |
80-62-6 |
100 |
410 |
- |
- |
- |
- |
- |
Methyl parathion |
298-00-0 |
- |
0.2 |
- |
- |
- |
- |
x |
Methyl propyl ketone; see 2-Pentanone |
||||||||
Methyl silicate |
681-84-5 |
1 |
6 |
- |
- |
5 |
30 |
- |
alpha-Methyl styrene |
98-83-9 |
50 |
240 |
100 |
485 |
- |
- |
- |
Metribuzin |
21087-64-9 |
- |
5 |
- |
- |
- |
- |
- |
Mica; see Silicates |
||||||||
Molybdenum, (as Mo) Insoluble compounds Soluble compounds |
7439-98-7 |
- - |
10 5 |
- - |
- - |
- - |
- - |
- - |
Monocrotophos (AzodrinR) |
6923-22-4 |
- |
0.25 |
- |
- |
- |
- |
- |
Monomethyl aniline |
100-61-8 |
0.5 |
2 |
- |
- |
- |
- |
x |
Morpholine |
110-91-8 |
20 |
70 |
30 |
105 |
- |
- |
x |
Naphtha (Coal tar) |
8030-30-6 |
100 |
400 |
- |
- |
- |
- |
- |
Naphthalene |
91-20-3 |
10 |
50 |
15 |
75 |
- |
- |
- |
alpha-Naphthylamine; see GI Part 350. CarcinogensF |
134-32-7 |
|||||||
beta-Naphthylamine; see GI Part 350. CarcinogensF |
91-59-8 |
|||||||
Nickel carbonyl (as Ni) |
13463-39-3 |
0.001 |
0.007 |
- |
- |
- |
- |
- |
Nickel, Metal and insoluble compounds (as Ni) Soluble compounds (as Ni) |
7440-02-0 |
- - |
1 0.1 |
- - |
- - |
- - |
- - |
- - |
Nicotine |
54-11-5 |
- |
0.5 |
- |
- |
- |
- |
x |
Nitric acid |
7697-37-2 |
2 |
5 |
4 |
10 |
- |
- |
- |
Nitric oxide |
10102-43-9 |
25 |
30 |
- |
- |
- |
- |
- |
p-Nitroaniline |
100-01-6 |
- |
3 |
- |
- |
- |
- |
X |
Nitrobenzene |
98-95-3 |
1 |
5 |
- |
- |
- |
- |
X |
p-Nitrochl orob enzene |
100-00-5 |
- |
1 |
- |
- |
- |
- |
X |
4-Nitrodiphenyl; see GI Part 350. CarcinogensF |
92-93-3 |
|||||||
Nitroethane |
79-24-3 |
100 |
310 |
- |
- |
- |
- |
- |
Nitrogen dioxide |
10102-44-0 |
- |
- |
1 |
1.8 |
- |
- |
- |
Nitrogen trifluoride |
7783-54-2 |
10 |
29 |
- |
- |
- |
- |
- |
Nitroglycerin |
55-63-0 |
- |
- |
- |
0.1 |
- |
- |
XX |
Nitrom ethane |
75-52-5 |
100 |
250 |
- |
- |
- |
- |
- |
1-Nitropropane |
108-03-2 |
25 |
90 |
- |
- |
- |
- |
- |
2-Nitropropane |
79-46-9 |
10 |
35 |
- |
- |
- |
- |
- |
N-Nitrosodimethylamine; see GI Part 350. CarcinogensF |
62-75-9 |
|||||||
Nitrotoluene (o-,m-,p-isomers) |
99-08-1 |
2 |
11 |
- |
- |
- |
- |
X |
Nitrotrichloromethane; see Chloropicrin |
||||||||
Nonane |
111-84-2 |
200 |
1050 |
- |
- |
- |
- |
- |
Octachloronaphthalene |
2234-13-1 |
- |
0.1 |
- |
0.3 |
- |
- |
x |
Octane |
111-65-9 |
300 |
1450 |
375 |
1800 |
- |
- |
- |
Oil mist, mineral |
8012-95-1 |
- |
5 |
- |
- |
- |
- |
- |
Osmium tetroxide (as Os) |
20816-12-0 |
- |
0.002 |
- |
0.006 |
- |
- |
- |
Oxalic acid |
144-62-7 |
- |
1 |
- |
2 |
- |
- |
- |
Oxygen difluoride |
7783-41-7 |
- |
- |
- |
- |
0.05 |
0.1 |
- |
Ozone |
10028-15-6 |
0.1 |
0.2 |
0.3 |
0.6 |
- |
- |
- |
Paraffin wax fume |
8002-74-2 |
- |
2 |
- |
- |
- |
- |
- |
Paraquat, respirable dust |
1910-42-5 2074-50-2 4685-14-7 |
- |
0.1 |
- |
- |
- |
- |
x |
Parathion |
56-38-2 |
- |
0.1 |
- |
- |
- |
- |
x |
Particulates not otherwise regulated, Respirable dust Total dust |
- - |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Pentaborane |
19624-22-7 |
0.005 |
0.01 |
0.015 |
0.03 |
- |
- |
- |
Pentachloronaphthalene |
1321-64-8 |
- |
0.5 |
- |
- |
- |
- |
x |
Pentachlorophenol |
87-86-5 |
- |
0.5 |
- |
- |
- |
- |
x |
Pentaerythritol, Respirable dust Total dust |
115-77-5 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Pentane |
109-66-0 |
600 |
1800 |
750 |
2250 |
- |
- |
- |
2-Pentanone (Methyl propyl ketone) |
107-87-9 |
200 |
700 |
250 |
875 |
- |
- |
- |
Perchloroethylene (Tetrachloroethylene) |
127-18-4 |
25 |
170 |
- |
- |
- |
- |
- |
Perchloromethyl mercaptan |
594-42-3 |
0.1 |
0.8 |
- |
- |
- |
- |
- |
Perchloryl fluoride |
7616-94-6 |
3 |
14 |
6 |
28 |
- |
- |
- |
Perlite Respirable dust Total dust |
93763-70-3 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Petroleum distillates (Naphtha) (Rubber solvent) |
- |
400 |
1600 |
- |
- |
- |
- |
- |
Phenol |
108-95-2 |
5 |
19 |
- |
- |
- |
- |
x |
Phenothiazine |
92-84-2 |
- |
5 |
- |
- |
- |
- |
x |
p-Phenylenediamine |
106-50-3 |
- |
0.1 |
- |
- |
- |
- |
x |
Phenyl ether, vapor |
101-84-8 |
1 |
7 |
- |
- |
- |
- |
- |
Phenyl ether-biphenyl mixture, vapor |
- |
1 |
7 |
- |
- |
- |
- |
- |
Phenylethylene; see Styrene |
||||||||
Phenyl glycidyl ether (PGE) |
122-60-1 |
1 |
6 |
- |
- |
- |
- |
- |
Phenylhydrazine |
100-63-0 |
5 |
20 |
10 |
45 |
- |
- |
x |
Phenyl mercaptan |
108-98-5 |
0.5 |
2 |
- |
- |
- |
- |
- |
Phenylphosphine |
638-21-1 |
- |
- |
- |
- |
0.05 |
0.25 |
- |
Phorate |
298-02-2 |
- |
0.05 |
- |
0.2 |
- |
- |
x |
Phosdrin (MevinphosR) |
7786-34-7 |
- |
0.1 |
- |
0.3 |
- |
- |
x |
Phosgene (Carbonyl chloride) |
75-44-5 |
0.1 |
0.4 |
- |
- |
- |
- |
- |
Phosphine |
7803-51-2 |
0.3 |
0.4 |
1 |
1 |
- |
- |
- |
Phosphoric acid |
7664-38-2 |
- |
1 |
- |
3 |
- |
- |
- |
Phosphorus (yellow) |
7723-14-0 |
- |
0.1 |
- |
- |
- |
- |
- |
Phosphorus oxychloride |
10025-87-3 |
0.1 |
0.6 |
- |
- |
- |
- |
- |
Phosphorus pentachloride |
10026-13-8 |
- |
1 |
- |
- |
- |
- |
- |
Phosphorus pentasulfide |
1314-80-3 |
- |
1 |
- |
3 |
- |
- |
- |
Phosphorus trichloride |
7719-12-2 |
0.2 |
1.5 |
0.5 |
3 |
- |
- |
- |
Phthalic anhydride |
85-44-9 |
1 |
6 |
- |
- |
- |
- |
- |
m-Phthalodinitrile |
626-17-5 |
- |
5 |
- |
- |
- |
- |
- |
Picloram, Respirable dust Total dust |
1918-02-1 |
- - |
5 10 |
- - |
- - |
- |
- |
- |
Picric acid |
88-89-1 |
- |
0.1 |
- |
- |
- |
- |
x |
Piperazine dihydrochloride |
142-64-3 |
- |
5 |
- |
- |
- |
- |
- |
Pindone (2-Pivalyl-1,3-indandione) |
83-26-1 |
- |
0.1 |
- |
- |
- |
- |
- |
Plaster of Paris (Calcium sulfate), Respirable dust Total dust |
26499-65-0 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Platinum (as Pt) Metal Soluble salts |
7440-06-4 |
- - |
1 0.002 |
- - |
- - |
- - |
- - |
- - |
Portland cement, Respirable dust Total dust |
65997-15-1 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Potassium hydroxide |
1310-58-3 |
- |
- |
- |
- |
- |
2 |
- |
Propane |
74-98-6 |
1000 |
1800 |
- |
- |
- |
- |
- |
Propargyl alcohol |
107-19-7 |
1 |
2 |
- |
- |
- |
- |
x |
beta-Propriolactone; see GI Part 350. CarcinogensF |
57-57-8 |
|||||||
Propionic acid |
79-09-4 |
10 |
30 |
- |
- |
- |
- |
- |
Propoxur (Baygon) |
114-26-1 |
- |
0.5 |
- |
- |
- |
- |
- |
n-Propyl acetate |
109-60-4 |
200 |
840 |
250 |
1050 |
- |
- |
- |
n-Propyl alcohol |
71-23-8 |
200 |
500 |
250 |
625 |
- |
- |
- |
n-Propyl nitrate |
627-13-4 |
25 |
105 |
40 |
170 |
- |
- |
- |
Propylene dichloride |
78-87-5 |
75 |
350 |
110 |
510 |
- |
- |
- |
Propylene glycol dinitrate |
6423-43-4 |
0.05 |
0.3 |
- |
- |
- |
- |
- |
Propylene glycol monomethyl ether |
107-98-2 |
100 |
360 |
150 |
540 |
- |
- |
- |
Propylene imine |
75-55-8 |
2 |
5 |
- |
- |
- |
- |
x |
Propylene oxide |
75-56-9 |
20 |
50 |
- |
- |
- |
- |
- |
Propyne; see Methyl acetylene |
||||||||
Pyrethrum |
8003-34-7 |
- |
5 |
- |
- |
- |
- |
- |
Pyridine |
110-86-1 |
5 |
15 |
- |
- |
- |
- |
- |
Quinone |
106-51-4 |
0.1 |
0.4 |
- |
- |
- |
- |
- |
Resorcinol |
108-46-3 |
10 |
45 |
20 |
90 |
- |
- |
- |
Rhodium, Insoluble compounds (as Rh) Metal fume (as Rh) Soluble compounds (as Rh) |
7440-16-6 |
- - - |
0.1 0.1 0.001 |
- - - |
- - - |
- - - |
- - - |
- - - |
Ronnel |
299-84-3 |
- |
10 |
- |
- |
- |
- |
- |
Rosin core solder pyrolysis products, as formaldehyde |
- |
- |
0.1 |
- |
- |
- |
- |
- |
Rotenone |
83-79-4 |
- |
5 |
- |
- |
- |
- |
- |
Rouge, Respirable dust Total dust |
- - |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Selenium compounds (as Se) |
7782-49-2 |
- |
0.2 |
- |
- |
- |
- |
- |
Selenium hexafluoride (as Se) |
7783-79-1 |
0.05 |
0.4 |
- |
- |
- |
- |
- |
Silica, amorphous, precipitated and gel |
112926-00-8 |
- |
6 |
- |
- |
- |
- |
- |
Silica, amorphous, diatomaceous earth, containing less than 1% crystalline silica |
61790-53-2 |
- |
6 |
- |
- |
- |
- |
- |
Silica, crystalline, respirable dust See GI Part 590. Silica in General Industry |
||||||||
Cristobalite |
14464-46-1 |
- |
0.05 |
- |
- |
- |
- |
- |
Quartz |
14808-60-7 |
- |
0.05 |
- |
- |
- |
- |
- |
Tridymite |
15468-32-3 |
- |
0.05 |
- |
- |
- |
- |
- |
Tripoli (as quartz) |
1317-95-9 |
- |
0.05 |
- |
- |
- |
- |
- |
Silica, fused, Respirable dust |
60676-86-0 |
- |
0.1 |
- |
- |
- |
- |
- |
Silicates (less than 1% crystalline silica) |
||||||||
Mica, respirable dust |
12001-26-2 |
- |
3 |
- |
- |
- |
- |
- |
Soapstone, respirable dust |
- |
- |
3 |
- |
- |
- |
- |
- |
Soapstone, total dust |
- |
- |
6 |
- |
- |
- |
- |
- |
Talc (containing asbestos); use asbestos limit |
- |
OH Part 305 "Asbestos for General Industry," |
||||||
Talc (containing no asbestos), respirable dust |
14807-96-6 |
- |
2 |
- |
- |
- |
- |
- |
Tremolite |
- |
OH Part 305 "Asbestos for General Industry," |
||||||
Silicon, Respirable dust Total dust |
7440-21-3 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Silicon carbide, Respirable dust Total dust |
409-21-2 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Silicon tetrahydride |
7803-62-5 |
5 |
7 |
- |
- |
- |
- |
- |
Silver, metal and soluble compounds (as Ag) |
7440-22-4 |
- |
0.01 |
- |
- |
- |
- |
- |
Soapstone; see Silicates |
||||||||
Sodium azide (as HN3) (as NaN3) |
26628-22-8 |
- - |
- - |
- - |
- - |
0.1 - |
- 0.3 |
x x |
Sodium bisulfite |
7631-90-5 |
- |
5 |
- |
- |
- |
- |
- |
Sodium fluoroacetate |
62-74-8 |
- |
0.05 |
- |
0.15 |
- |
- |
x |
Sodium hydroxide |
1310-73-2 |
- |
- |
- |
- |
- |
2 |
- |
Sodium metabisulfite |
7681-57-4 |
- |
5 |
- |
- |
- |
- |
- |
Starch, Respirable dust Total dust |
9005-25-8 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Stibine |
7803-52-3 |
0.1 |
0.5 |
- |
- |
- |
- |
- |
Stoddard solvent |
8052-41-3 |
100 |
525 |
- |
- |
- |
- |
- |
Strychnine |
57-24-9 |
- |
0.15 |
- |
- |
- |
- |
- |
Styrene |
100-42-5 |
50 |
215 |
100 |
425 |
- |
- |
- |
Subtilisins (Proteolytic enzymes) |
9014-01-1 |
- |
- |
- |
0.00006 (60 min.) |
- |
- |
- |
Sucrose, Respirable dust Total dust |
57-50-1 |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Sulfur dioxide |
7446-09-5 |
2 |
5 |
5 |
10 |
- |
- |
- |
Sulfur hexafluoride |
2551-62-4 |
1000 |
6000 |
- |
- |
- |
- |
- |
Sulfuric acid |
7664-93-9 |
- |
1 |
- |
- |
- |
- |
- |
Sulfur monochloride |
10025-67-9 |
- |
- |
- |
- |
1 |
6 |
- |
Sulfur pentafluoride |
5714-22-7 |
- |
- |
- |
- |
0.01 |
0.1 |
- |
Sulfur tetrafluoride |
7783-60-0 |
- |
- |
- |
- |
0.1 |
0.4 |
- |
Sulfuryl fluoride |
2699-79-8 |
5 |
20 |
10 |
40 |
- |
- |
- |
Sulprofos |
35400-43-2 |
- |
1 |
- |
- |
- |
- |
- |
SystoxR; see Demeton |
||||||||
2,4,5-T (2,4,5-trichlorophenoxyacetic acid) |
93-76-5 |
- |
10 |
- |
- |
- |
- |
- |
Talc; see Silicates |
||||||||
Tantalum, metal and oxide dust |
7440-25-7 |
- |
5 |
- |
- |
- |
- |
- |
TEDP (Sulfotep) |
3689-24-5 |
- |
0.2 |
- |
- |
- |
- |
x |
Tellurium and compounds (as Te) |
13494-80-9 |
- |
0.1 |
- |
- |
- |
- |
- |
Tellurium hexafluoride (as Te) |
7783-80-4 |
0.02 |
0.2 |
- |
- |
- |
- |
- |
Temephos, Respirable dust Total dust |
3383-96-8 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
TEPP |
107-49-3 |
- |
0.05 |
- |
- |
- |
- |
x |
Terphenyls |
26140-60-3 |
- |
- |
- |
- |
0.5 |
5 |
- |
1,1,1,2-Tetrachloro-2, 2-difluoroethane |
76-11-9 |
500 |
4170 |
- |
- |
- |
- |
- |
1,1,2,2-Tetrachloro-1, 2-difluoroethane |
76-12-0 |
500 |
4170 |
- |
- |
- |
- |
- |
1,1,2,2-Tetrachloroethane |
79-34-5 |
1 |
7 |
- |
- |
- |
- |
x |
Tetrachloroethylene; see Perchloroethylene |
||||||||
Tetrachloromethane; see Carbon tetrachloride |
||||||||
Tetrachloronaphthalene |
1335-88-2 |
- |
2 |
- |
- |
- |
- |
x |
Tetraethyl lead (as Pb) |
78-00-2 |
- |
0.075 |
- |
- |
- |
- |
x |
Tetrahydrofuran |
109-99-9 |
200 |
590 |
250 |
735 |
- |
- |
- |
Tetramethyl lead (as Pb) |
75-74-1 |
- |
0.075 |
- |
- |
- |
- |
x |
Tetramethyl succinonitrile |
3333-52-6 |
0.5 |
3 |
- |
- |
- |
- |
x |
Tetranitromethane |
509-14-8 |
1 |
8 |
- |
- |
- |
- |
- |
Tetrasodium pyrophosphate |
7722-88-5 |
- |
5 |
- |
- |
- |
- |
- |
Tetryl (2,4,6-Trinitrophenylmethylnitramine) |
479-45-8 |
- |
1.5 |
- |
- |
- |
- |
x |
Thallium, soluble compounds (as Tl) |
7440-28-0 |
- |
0.1 |
- |
- |
- |
- |
x |
4,4'-Thiobis(6-tert-butyl-m-cresol) Respirable dust Total dust |
96-69-5 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Thioglycolic acid |
68-11-1 |
1 |
4 |
- |
- |
- |
- |
x |
Thionyl chloride |
7719-09-7 |
- |
- |
- |
- |
1 |
5 |
- |
Thiram |
137-26-8 |
- |
5 |
- |
- |
- |
- |
- |
Tin, Inorganic compounds (except oxides) (as Sn) Organic compounds (as Sn) Oxides (as Sn) |
7440-31-5 7440-31-5 21651-19-4 |
- - - |
2 0.1 2 |
- - - |
- - - |
- - - |
- - - |
- x - |
Titanium dioxide Total dust |
13463-67-7 |
- |
10 |
- |
- |
- |
- |
- |
Toluene |
108-88-3 |
100 |
375 |
150 |
560 |
- |
- |
- |
Toluene-2,4-diisocyanate (TDI) |
584-84-9 |
0.005 |
0.04 |
0.02 |
0.15 |
- |
- |
- |
m-Toluidine |
108-44-1 |
2 |
9 |
- |
- |
- |
- |
x |
o-Toluidine |
95-53-4 |
5 |
22 |
- |
- |
- |
- |
x |
p-Toluidine |
106-49-0 |
2 |
9 |
- |
- |
- |
- |
x |
Toxaphene; see Chlorinated camphene |
||||||||
Tremolite; see Silicates |
||||||||
Tributyl phosphate |
126-73-8 |
0.2 |
2.5 |
- |
- |
- |
- |
- |
Trichloroacetic acid |
76-03-9 |
1 |
7 |
- |
- |
- |
- |
- |
1,2,4-Trichlorobenzene |
120-82-1 |
- |
- |
- |
- |
5 |
40 |
- |
1,1,1-Trichloroethane; see Methyl chloroform |
||||||||
1,1,2-Trichloroethane |
79-00-5 |
10 |
45 |
- |
- |
- |
- |
x |
Trichloroethylene |
79-01-6 |
50 |
270 |
200 |
1080 |
- |
- |
- |
Trichloromethane; see Chloroform |
||||||||
Trichloronaphthalene |
1321-65-9 |
- |
5 |
- |
- |
- |
- |
x |
1,2,3-Trichloropropane |
96-18-4 |
10 |
60 |
- |
- |
- |
- |
- |
1,1,2-Trichloro-1,2,2-trifluoroethane |
76-13-1 |
1000 |
7600 |
1250 |
9500 |
- |
- |
- |
Triethylamine |
121-44-8 |
10 |
40 |
15 |
60 |
- |
- |
- |
Trifluorobromomethane |
75-63-8 |
1000 |
6100 |
- |
- |
- |
- |
- |
Trimellitic anhydride |
552-30-7 |
0.005 |
0.04 |
- |
- |
- |
- |
- |
Trimethylamine |
75-50-3 |
10 |
24 |
15 |
36 |
- |
- |
- |
Trimethyl benzene |
25551-13-7 |
25 |
125 |
- |
- |
- |
- |
- |
Trimethyl phosphite |
121-45-9 |
2 |
10 |
- |
- |
- |
- |
- |
2,4,6-Trinitrophenol; see Picric acid |
||||||||
2,4,6-Trinitrophenylmethylnitramine; see Tetryl |
||||||||
2,4,6-Trinitrotoluene (TNT) |
118-96-7 |
- |
0.5 |
- |
- |
- |
- |
x |
Triorthocresyl phosphate |
78-30-8 |
- |
0.1 |
- |
- |
- |
- |
x |
Triphenyl amine |
603-34-9 |
- |
5 |
- |
- |
- |
- |
- |
Triphenyl phosphate |
115-86-6 |
- |
3 |
- |
- |
- |
- |
- |
Tungsten Insoluble compounds (as W) Soluble compounds (as W) |
7440-33-7 |
- - |
5 1 |
- - |
10 3 |
- - |
- - |
- - |
Turpentine |
8006-64-2 |
100 |
560 |
- |
- |
- |
- |
- |
Uranium (as U) Insoluble compounds Soluble compounds |
7440-61-1 |
- - |
0.2 0.05 |
- - |
0.6 - |
- - |
- - |
- - |
n-Valeraldehyde |
110-62-3 |
50 |
175 |
- |
- |
- |
- |
- |
Vanadium pentoxide Fume (as V2O5) Respirable dust (as V2O5) |
1314-62-1 |
- - |
0.05 0.05 |
- - |
- - |
- - |
- - |
- - |
VegeTABLE oil mists Respirable mist Total mist |
- |
- - |
5 15 |
- - |
- - |
- - |
- - |
- - |
Vinyl acetate |
108-05-4 |
10 |
30 |
20 |
60 |
- |
- |
- |
Vinyl benzene; see Styrene |
||||||||
Vinyl bromide |
593-60-2 |
5 |
20 |
- |
- |
- |
- |
- |
Vinyl chloride; see GI Part 302. Vinyl ChlorideF |
75-01-4 |
1 |
2.5 |
5 |
12.8 |
- |
- |
- |
Vinyl cyanide; see Acrylonitrile |
||||||||
Vinyl cyclohexene dioxide |
106-87-6 |
10 |
60 |
- |
- |
- |
- |
x |
Vinylidene chloride (1,1-Dichloroethylene) |
75-35-4 |
1 |
4 |
- |
- |
- |
- |
- |
Vinyl toluene |
25013-15-4 |
100 |
480 |
- |
- |
- |
- |
- |
VM & P Naphtha |
8032-32-4 |
300 |
1350 |
400 |
1800 |
- |
- |
- |
Warfarin |
81-81-2 |
- |
0.1 |
- |
- |
- |
- |
- |
Welding fumes (Total particulate)* |
- |
- |
5 |
- |
- |
- |
- |
- |
Wood dust, all soft and hard woods (except Western red cedar) |
- |
- |
5 |
- |
10 |
- |
- |
- |
Wood dust, Western red cedar |
- |
- |
2.5 |
- |
- |
- |
- |
- |
Xylene (o-,m-,p-isomers) (Dimethyl benzene) |
1330-20-7 |
100 |
435 |
150 |
655 |
- |
- |
- |
m-Xylene-alpha, alpha-diamine |
1477-55-0 |
- |
- |
- |
- |
- |
0.1 |
x |
Xylidine |
1300-73-8 |
2 |
10 |
- |
- |
- |
- |
x |
Yttrium |
7440-65-5 |
- |
1 |
- |
- |
- |
- |
- |
Zinc chloride fume |
7646-85-7 |
- |
1 |
- |
2 |
- |
- |
- |
Zinc chromates (as Cr+6); see OH Part 315. Chromium (VI) in General IndustryF,G |
Varies with compound |
- |
0.005 (5 µg/m3) |
- |
- |
- |
- |
- |
Zinc oxide fume |
1314-13-2 |
- |
5 |
- |
10 |
- |
- |
- |
Zinc oxide, Respirable dust Total dust |
1314-13-2 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Zinc stearate Respirable dust Total dust |
557-05-1 |
- - |
5 10 |
- - |
- - |
- - |
- - |
- - |
Zirconium compounds (as Zr) |
7440-67-7 |
- |
5 |
- |
10 |
- |
- |
- |
All MIOSHA Standards shown in this TABLE are referenced in R 325.51101. |
||||||||
* |
As determined from breathing-zone air samples. |
|||||||
** |
Parts per billion. |
|||||||
A |
The CAS number is for information only. Enforcement is based on the substance name. For an entry covering more than 1 metal compound measured as the metal, the CAS number for the metal is given - not the CAS number for the individual compounds. |
|||||||
B |
Parts of vapor or gas per million parts of contaminated air by volume at 25 Chr(176)C and 760 Torr. |
|||||||
C |
Approximate milligrams of substance per cubic meter of air. |
|||||||
D |
Duration is for 15 minutes, unless otherwise noted. |
|||||||
E |
The GI & CS Part 311. "Benzene" standard applies to all occupational exposures to benzene, except some sub-segments of industry where exposures are consistently under the action level. These sub-segments include the distribution and sale of fuels, sealed containers and pipelines, coke production, oil and gas drilling and production, natural gas processing, and the percentage exclusion for liquid mixtures. For the excepted sub-segments, the benzene limits in TABLE G-2 apply. |
|||||||
F |
Caution--this rule contains extensive requirements for exposure to these substances. |
|||||||
G |
If the exposure limit in OH Part 315. "Chromium (VI) in General In y" is stayed or is otherwise not in effect, the exposure limit is a ceiling of 0.1 mg/m3. |
TABLE G-2. XPOSURE LIMITS FOR AIR CONTAMINATES |
|||||
Substance |
8-hour, time-weighted average |
AccepTABLE ceiling concentration |
AccepTABLE maximum peak above the accepTABLE ceiling concentration for an 8-hour workshift. |
||
Concentration |
Maximum duration |
||||
S |
BenzeneE,F |
10 ppm |
25 ppm |
50 ppm |
10 minutes |
S |
Ethylene dibromide |
20 ppm |
30 ppm |
50 ppm |
5 minutes |
Note: S above signifies that skin contact shall not be allowed. |
|||||
E |
The GI & CS Part 311. "Benzene" standard applies to all occupational exposures to benzene, except some sub-segments of industry where exposures are consistently under the action level. These sub-segments include the distribution and sale of fuels, sealed containers and pipelines, coke production, oil and gas drilling and production, natural gas processing, and the percentage exclusion for liquid mixtures. For the excepted sub-segments, the benzene limits in this TABLE apply. |
||||
F |
Caution--this rule contains extensive requirements for exposure to these substances. |
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.