12 CRR-NY 12-3.1NY-CRR
12 CRR-NY 12-3.1
12 CRR-NY 12-3.1
12-3.1 General.
The existence of air contaminants consisting of or deriving from the substances named in the following tables in relative quantities greater than those set forth as to each substance shall constitute prima facie evidence that such contaminants are dangerous air contaminants, except when they exist only momentarily and infrequently. Prima facie evidence as to whether such contaminants in momentary and infrequent occurrences, or other air contaminants not named in the tables or lesser concentrations than those set forth in the following tables constitute dangerous air contaminants by reason of their existence in quantities tending to injure the health of employees shall include an opinion to that effect by a physician representing the industrial commissioner.
Note:
Petitions for variations pursuant to section 30 of the Labor Law from administrative orders issued on the basis of prima facie evidence of dangerous air contaminants will be decided by the board after review of reports of air tests and field investigations submitted to the board by the commissioner and a hearing which the petitioner will attend. The petitioner will be given opportunity to submit testimony, data and test results at the hearing to support his variation request.
TABLE I—Threshold Limit Values (T.L.V.)
(in alphabetical order)
Substance | ppm(a) | mg/M3(b) | |
---|---|---|---|
Abate* | — | 15 | |
Acetaldehyde | 200 | 360 | |
Acetic acid | 10 | 25 | |
Acetic anhydride | 5 | 20 | |
Acetone | 1,000 | 2,400 | |
Acetonitrile | 40 | 70 | |
Acetylene dichloride, see 1,2 Dicloroethylene | |||
Acetylene tetrabromide | 1 | 14 | |
Acrolein | 0.1 | 0.25 | |
Acrylamide–skin | — | 0.3 | |
Acrylonitrile–skin | 20 | 45 | |
Aldrin–skin | — | 0.25 | |
Allyl alcohol–skin | 2 | 5 | |
Allyl chloride | 1 | 3 | |
C | Allyl glycidyl ether (AGE) | 10 | 45 |
Allyl propyl disulfide | 2 | 12 | |
2–Aminoethanol, see Ethanolamine | |||
2–Aminopyridine | 0.5 | 2 | |
Ammonia | 50 | 35 | |
Ammonium sulfamate (Ammate) | — | 15 | |
n–Amyl acetate | 100 | 525 | |
sec–Amyl acetate | 125 | 650 | |
Aniline–skin | 5 | 19 | |
Anisidine (o,p–isomers)–skin | — | 0.5 | |
Antimony & compounds (as Sb) | — | 0.5 | |
ANTU (alpha naphthyl thiourea) | — | 0.3 | |
Arsenic & compounds (as As) | — | 0.5 | |
Arsine | 0.05 | 0.2 | |
Azinphos–methyl–skin | — | 0.2 | |
Barium (soluble compounds) | — | 0.5 | |
C | Benzene (benzol)–skin | 25 | 80 |
Benzidine–skin | — | A | |
p–Benzoquinone, see Quinone | |||
Benzoyl peroxide | — | 5 | |
Benzyl chloride | 1 | 5 | |
Beryllium | — | 0.002 | |
Biphenyl, see Diphenyl | |||
Boron oxide | — | 15 | |
Boron tribromide* | 1 | — | |
C | Boron trifluoride | 1 | 3 |
Bromine | 0.1 | 0.7 | |
Bromine pentafluoride* | 0.1 | — | |
Bromoform–skin | 0.5 | 5 | |
Butadiene (1, 3–butadiene) | 1,000 | 2,200 | |
Butanethiol, see Butyl mercaptan | |||
2–Butanone | 200 | 590 | |
2–Butoxy ethanol (Butyl Cellosolve)–skin | 50 | 240 | |
Butyl acetate (n–butyl acetate) | 150 | 710 | |
sec–Butyl acetate | 200 | 950 | |
tert–Butyl acetate | 200 | 950 | |
Butyl alcohol | 100 | 300 | |
sec–Butyl alcohol | 150 | 450 | |
tert–Butyl alcohol | 100 | 300 | |
C | Butylamine–skin | 5 | 15 |
C | tert–Butyl chromate (as CrO 3 )–skin | — | 0.1 |
n–Butyl glycidyl ether (BGE) | 50 | 270 | |
Butyl mercaptan | 10 | 35 | |
p–tert–Butyltoluene | 10 | 60 | |
Cadmium (Metal dust and soluble salts) | — | 0.2 | |
Cadmium oxide fume | — | 0.1 | |
Calcium arsenate | — | 1 | |
Calcium oxide | — | 5 | |
Camphor* | 2 | — | |
Carbaryl (Sevin**) | — | 5 | |
Carbon black | — | 3.5 | |
Carbon dioxide | 5,000 | 9,000 | |
Carbon disulfide–skin | 20 | 60 | |
Carbon monoxide | 50 | 55 | |
Carbon tetrachloride–skin | 10 | 65 | |
Chlordane–skin | — | 0.5 | |
Chlorinated camphene–skin | — | 0.5 | |
Chlorinated diphenyl oxide | — | 0.5 | |
Chlorine* | 1 | — | |
Chlorine dioxide | 0.1 | 0.3 | |
C | Chlorine trifluoride | 0.1 | 0.4 |
C | Chloroacetaldehyde | 1 | 3 |
alpha–Chloroacetophenone (phenacylchloride) | 0.05 | 0.3 | |
Chlorobenzene (monochlorobenzene) | 75 | 350 | |
o–Chlorobenzylidene malononitrile (OCBM) | 0.05 | 0.4 | |
Chlorobromomethane | 200 | 1,050 | |
2–Chloro–1, 3 butadiene, see Chloroprene | |||
Chlorodiphenyl (42% Chlorine)–skin | — | 1 | |
Chlorodiphenyl (54% Chlorine)–skin | — | 0.5 | |
1, Chloro, 2, 3, epoxypropane, see Epichlorhydrin | |||
2, Chloroethanol, see Ethylene chlorohydrin | |||
Chloroethylene, see Vinyl chloride | |||
C | Chloroform (trichloromethane) | 50 | 240 |
1–Chloro–1–nitropropane | 20 | 100 | |
Chloropicrin | 0.1 | 0.7 | |
Chloroprene (2–chloro–1, 3–butadiene)–skin | 25 | 90 | |
Chromic acid and chromates (as CrO 3 ) | — | 0.1 | |
Chromium, sol. chromic, chromous salts (as Cr) | — | 0.5 | |
Metal and insoluble salts | — | 1 | |
Coal tar pitch volatiles (benzene soluble fraction, anthracene, BaP, phenanthrene, acridine, chrysene, pyrene) | — | 0.2 | |
Cobalt, metal fume and dust | — | 0.1 | |
Copper fume | — | 0.1 | |
Dusts and mists | — | 1 | |
Cotton dust (raw) | — | 1 | |
Crag** herbicide | — | 15 | |
Cresol (all isomers)–skin | 5 | 22 | |
Crotonaldehyde | 2 | 6 | |
Cumene–skin | 50 | 245 | |
Cyanide (as CN)–skin | — | 5 | |
Cyanogen* | 10 | — | |
Cyclohexane | 300 | 1,050 | |
Cyclohexanol | 50 | 200 | |
Cyclohexanone | 50 | 200 | |
Cyclohexene | 300 | 1,015 | |
Cyclopentadiene | 75 | 200 | |
2, 4–D | — | 10 | |
DDT–skin | — | 1 | |
DDVP–skin | — | 1 | |
Decaborane–skin | 0.05 | 0.3 | |
Demeton**–skin | — | 0.1 | |
Diacetone alcohol (4–methyl–2–pentanone) | 50 | 240 | |
1, 2 Diaminoethane, see Ethyllenediamine | |||
Diazomethane | 0.2 | 0.4 | |
Diborane | 0.1 | 0.1 | |
C | 1, 2–Dibromoethane (ethylene dibromide)– skin | 25 | 190 |
Dibutyl phosphate | 1 | 5 | |
Dibutylphthalate | — | 5 | |
C | o–Dichlorobenzene | 50 | 300 |
p–Dichlorobenzene | 75 | 450 | |
Dichlorodifluoromethane | 1,000 | 4,950 | |
1, 3–Dichloro–5, dimethyl hydantoin | — | 0.2 | |
1, 1–Dichloroethane | 100 | 400 | |
1, 2–Dichloroethane | 50 | 200 | |
1, 2–Dichloroethylene | 200 | 790 | |
C | Dichloroethyl ether–skin | 15 | 90 |
Dichloromethane, see Methylenechloride | |||
Dichloromonofluoromethane | 1,000 | 4,200 | |
C | 1, 1–Dichloro–1–nitroethane | 10 | 60 |
1, 2–Dichloropropane, see Propylenedichloride | |||
Dichlorotetrafluoroethane | 1,000 | 7,000 | |
Dieldrin–skin | — | 0.25 | |
Diethylamine | 25 | 75 | |
Diethylamino ethanol–skin | 10 | 50 | |
C | Diethylene triamine–skin | 10 | — |
Diethylether, see Ethyl ether | |||
Difluorodibromomethane | 100 | 860 | |
C | Diglycidyl ether (DGE) | 5.5 | 2.8 |
Dihydroxybenzene, see Hydroquinone | |||
Diisobutyl ketone | 50 | 290 | |
Diisopropylamine–skin | 5 | 20 | |
Diphenyl amine* | — | 10 | |
Dimethoxymethane, see Methylal | |||
Dimethyl acetamide–skin | 10 | 35 | |
Dimethylamine | 10 | 18 | |
Dimethylaminobenzene, see Xylidene | |||
Dimethylaniline (N–dimethylaniline)–skin | 5 | 25 | |
Dimethylbenzene, see Xylene | |||
Dimethyl, 1, 2–dibromo–2, 2–dichloroethyl, (Dibrom) | — | 3 | |
Dimethylformamide–skin | 10 | 30 | |
2, 6 Dimethylheptanone, see Diisobutyl ketone | |||
1, 1–Dimethylhydrazine–skin | 0.5 | 1 | |
Dimethylphthalate | — | 5 | |
Dimethylsulfate–skin | 1 | 5 | |
Dinitrobenzene (all isomers)–skin | — | 1 | |
Dinitro–o–cresol–skin | — | 0.2 | |
Dinitrotoluene–skin | — | 1.5 | |
Dioxane (Diethylene dioxide)–skin | 100 | 360 | |
Diphenyl | 0.2 | 1 | |
Diphenyl Amine* | — | 10 | |
Diphenylmethane diisocyanate (see Methylene bisphenyl isocyanate) (MDI) | |||
Dipropylene glycol methyl ether–skin | 100 | 600 | |
Di–sec, octyl phthalate (Di–2–ethylhexylphthalate) | — | 5 | |
Endrin–skin | — | 0.1 | |
Epichlorhydrin–skin | 5 | 19 | |
EPN–skin | — | 0.5 | |
1, 2–Epoxypropane, see Propyleneoxide | |||
2, 3–Epoxy–1–propanol, see Glycidol | |||
Ethanethiol, see Ethylmercaptan | |||
Ethanolamine | 3 | 6 | |
2 Ethoxyethanol–skin | 200 | 740 | |
2 Ethoxyethylacetate (Cellosolve acetate)–skin | 100 | 540 | |
Ethyl acetate | 400 | 1,400 | |
Ethyl acrylate–skin | 25 | 100 | |
Ethyl alcohol (ethanol) | 1,000 | 1,900 | |
Ethylamine | 10 | 18 | |
Ethyl sec–amyl ketone (5–methyl–3–heptanone) | 25 | 130 | |
Ethyl benzene | 100 | 435 | |
Ethyl bromide | 200 | 890 | |
Ethyl butyl ketone (3–Heptanone) | 50 | 230 | |
Ethyl chloride | 1,000 | 2,600 | |
Ethyl ether | 400 | 1,200 | |
Ethyl formate | 100 | 300 | |
Ethyl mercaptan | 10 | 25 | |
Ethyl silicate | 100 | 850 | |
Ethylene chlorohydrin–skin | 5 | 16 | |
Ethylenediamine | 10 | 25 | |
Ethylene dibromide, see 1, 2–Dibromoethane | |||
Ethylene dichloride, see 1, 2–Dichloroethane | |||
C | Ethylene glycol dinitrate and/or Nitrogylcerin– skin | 0.2(d) | 1 |
Ethylene glycol monomethyl ether acetate, see Methyl cellosolve acetate | |||
Ethylene imine–skin | 0.5 | 1 | |
Ethylene oxide | 50 | 90 | |
Ethylidine chloride, see 1, 1–Dichloroethane | |||
N–Ethylmorpholine–skin | 20 | 94 | |
Ferbam | — | 15 | |
Ferrovanadium dust | — | 1 | |
Fluoride (as F) | — | 2.5 | |
Fluorine | 0.1 | 0.2 | |
Fluorotrichloromethane | 1,000 | 5,600 | |
C | Formaldehyde | 5 | 6 |
Formic acid | 5 | 9 | |
Furfural–skin | 5 | 20 | |
Furfuryl alcohol | 50 | 200 | |
Gasoline | — | A | |
Gylcidol (2, 3–Epoxy–1–propanol) | 50 | 150 | |
Gylcol monoethyl ether, see 2–Ethoxyethanol | |||
Guthion**, see Azinphosmethyl | |||
Hafnium | — | 0.5 | |
Heptachlor–skin | — | 0.5 | |
Heptane (n–heptane) | 500 | 2,000 | |
Hexachloroethane–skin | 1 | 10 | |
Hexachloronaphthalene–skin | — | 0.2 | |
Hexane (n–hexane) | 500 | 1,800 | |
2–Hexanone | 100 | 410 | |
Hexone | 100 | 410 | |
sec–Hexyl acetate | 50 | 300 | |
Hydrazine–skin | 1 | 1.3 | |
Hydrogen bromide | 3 | 10 | |
C | Hydrogen chloride | 5 | 7 |
Hydrogen cyanide–skin | 10 | 11 | |
Hydrogen fluoride | 3 | 2 | |
Hydrogen peroxide, 90% | 1 | 1.4 | |
Hydrogen selenide | 0.05 | 0.2 | |
Hydrogen sulfide | 10 | 15 | |
Hydroquinone | — | 2 | |
Indium and compounds (as In)* | — | 0.1 | |
C | Iodine | 0.1 | 1 |
Iron oxide fume | — | 10 | |
Iron salts, soluble (as Fe)* | — | 1 | |
Isoamyl acetate | 100 | 525 | |
Isoamyl alcohol | 100 | 360 | |
Isobutyl acetate | 150 | 700 | |
Isobutyl alcohol | 100 | 300 | |
Isophorone | 25 | 140 | |
Isopropyl acetate | 250 | 950 | |
Isopropyl alcohol | 400 | 980 | |
Isopropylamine | 5 | 12 | |
Isopropylether | 500 | 2,100 | |
Isopropyl glycidyl ether (IGE) | 50 | 240 | |
Ketone | 0.5 | 0.9 | |
Lead | — | 0.2 | |
Lead arsenate | — | 0.15 | |
Lindane–skin | — | 0.5 | |
Lithium hydride | — | 0.025 | |
L.P.G. (Liquified petroleum gas) | 1,000 | 1,800 | |
Magnesium oxide fume | — | 15 | |
Malathion–skin | — | 15 | |
Maleic anhydride | 0.25 | 1 | |
C | Manganese | — | 5 |
Mercury–skin | — | 0.1 | |
Mercury (organic compounds)–skin | — | 0.01 | |
Mesityl oxide | 25 | 100 | |
Methanethiol, see Methyl mercaptan | |||
Methoxychlor | — | 15 | |
2–Methoxyethanol, see Methyl cellosolve | |||
Methyl acetate | 200 | 610 | |
Methyl acetylene (propyne) | 1,000 | 1,650 | |
Methyl acetylene–propadiene mixture (MAPP) | 1,000 | 1,800 | |
Methyl acrylate–skin | 10 | 35 | |
Methylal (dimethoxymethane) | 1,000 | 3,100 | |
Methyl alcohol (methanol) | 200 | 260 | |
Methylamine | 10 | 12 | |
Methyl amyl alcohol, see Methyl isobutyl carbinol | |||
Methyl (n–amyl) ketone (2–Heptanone) | 100 | 465 | |
C | Methyl bromide–skin | 20 | 80 |
Methyl butyl ketone, see 2–Hexanone | |||
Methyl cellosolve–skin | 25 | 80 | |
Methyl cellosolve acetate–skin | 25 | 120 | |
C | Methyl chloride | 100 | 210 |
Methyl chloroform | 350 | 1,900 | |
Methylcyclohexane | 500 | 2,000 | |
Methylcyclohexanol | 100 | 470 | |
o–Methylcyclohexanone–skin | 100 | 460 | |
Methyl ethyl ketone (MEK), see 2–Butanone | |||
Methyl formate | 100 | 250 | |
Methyl iodide–skin | 5 | 28 | |
Methyl isobutyl carbinol–skin | 25 | 100 | |
Methyl isobutyl ketone, see Hexone | |||
Methyl isocyanate–skin | 0.22 | 0.05 | |
C | Methyl mercaptan | 10 | 20 |
Methyl methacrylate | 100 | 410 | |
Methyl propyl ketone, see 2–Pentanone | |||
C | Methyl silicate* | 5 | — |
C | alpha–Methyl styrene | 100 | 480 |
C | Methylene bisphenyl isocyanate (MDI) | 0.02 | 0.2 |
Methylene chloride (dichloromethane) | 500 | 1,740 | |
Molybdenum (soluble compounds) | — | 5 | |
(insoluble compounds) | — | 15 | |
Monomethyl aniline–skin | 2 | 9 | |
C | Monomethyl hydrazine–skin | 0.2 | 0.35 |
Morpholine–skin | 20 | 70 | |
Naphtha (coal tar) | 100 | 400 | |
Naphthalene | 10 | 50 | |
beta–Naphthylamine | — | A | |
Nickel carbonyl | 0.001 | 0.007 | |
Nickel, metal and soluble compounds | — | 1 | |
Nicotine–skin | — | 0.5 | |
Nitric acid | 2 | 5 | |
Nitric oxide | 25 | 30 | |
p–Nitroaniline–skin | 1 | 6 | |
Nitrobenzene–skin | 1 | 5 | |
p–Nitrochloro–benzene–skin | — | 1 | |
Nitroethane | 100 | 310 | |
C | Nitrogen dioxide | 5 | 9 |
Nitrogen Trifluoride | 10 | 29 | |
C | Nitroglycerin–skin | 0.2 | 2 |
Nitromethane | 100 | 250 | |
1–Nitropropane | 25 | 90 | |
2–Nitropropane | 25 | 90 | |
N–Nitrosodimethyl–amine (Dimethyl–nitrosoamine)–skin | — | A | |
Nitrotoluene–skin | 5 | 30 | |
Nitrotrichloromethane, see Chloropicrin | |||
Octachloronaphthalene–skin | — | 0.1 | |
Octane | 500 | 2,350 | |
Oil mist (mineral) | — | 5 | |
Osmium tetroxide | — | 0.002 | |
Oxalic acid | — | 1 | |
Oxygen difluoride | 0.05 | 0.1 | |
Ozone | 0.1 | 0.2 | |
Paraquat–skin | — | 0.5 | |
Parathion–skin | — | 0.1 | |
Pentaborane | 0.005 | 0.01 | |
Pentachloronaphthalene–skin | — | 0.5 | |
Pentachlorophenol–skin | — | 0.5 | |
Pentane | 1,000 | 2,950 | |
2–Pentanone | 200 | 700 | |
Perchloroethylene | 100 | 670 | |
Perchloromethyl mercaptan | 0.1 | 0.8 | |
Perchloryl fluoride | 3 | 13.5 | |
Petroleum Distillates (naphtha) | 500 | 2,000 | |
Phenol–skin | 5 | 19 | |
p–Phenylene diamine–skin | — | 0.1 | |
Phenyl ether (vapor) | 1 | 7 | |
Phenyl ether–Biphenyl mixture (vapor) | 1 | 7 | |
Phenylethylene, see Styrene | |||
Phenyl glycidyl ether (PGE) | 10 | 60 | |
Phenylhydrazine–skin | 5 | 22 | |
Phosdrln (Mevinphos**)–skin | — | 0.1 | |
Phosgene (carbonyl chloride) | 0.1 | 0.4 | |
Phosphine | 0.3 | 0.4 | |
Phosphoric acid | — | 1 | |
Phosphorus (yellow) | — | 0.1 | |
Phosphorus pentachloride | — | 1 | |
Phosphorus pentasulfide | — | 1 | |
Phosphorus trichloride | 0.5 | 3 | |
Phthalic anhydride | 2 | 12 | |
Picric acid–skin | — | 0.1 | |
Pival** (2–Pivalyl–1, 3–indandione) | — | 0.1 | |
Platinum (soluble salts) | — | 0.002 | |
Polytetrafluoroethylene decomposition products | — | A2 | |
Propane | 1,000 | 1,800 | |
beta–Propiolactone | — | A1 | |
Propargyl alcohol–skin* | 1 | — | |
n–Propyl acetate | 200 | 840 | |
Propyl alcohol | 200 | 500 | |
n–Propyl nitrate | 25 | 110 | |
Propylene dichloride | 75 | 350 | |
Propylene imine–skin | 2 | 5 | |
Propylene oxide | 100 | 240 | |
Propyne, see Methylacetylene | |||
Pyrethrum | — | 5 | |
Pyridine | 5 | 15 | |
Quinone | 0.1 | 0.4 | |
RDX–skin* | — | 1.5 | |
Rhodium, Metal fume and dusts | — | 0.1 | |
Soluble salts | — | 0.001 | |
Ronnel | — | 15 | |
Rotenone (commercial) | — | 5 | |
Selenium compounds (as Se) | — | 0.2 | |
Selenium hexafluoride | 0.05 | 0.4 | |
Silver, Metal and soluble compounds | — | 0.01 | |
Sodium fluoroacetate (1080)–skin | — | 0.05 | |
Sodium hydroxide | — | 2 | |
Stibine | 0.1 | 0.5 | |
Stoddard solvent | 500 | 2,900 | |
Strychnine | — | 0.15 | |
C | Styrene monomer (phenylethylene) | 100 | 420 |
Sulfur dioxide | 5 | 13 | |
Sulfur hexafluoride | 1,000 | 6,000 | |
Sulfuric acid | — | 1 | |
Sulfur monochloride | 1 | 6 | |
Sulfur pentafluoride | 0.025 | 0.25 | |
Sulfuryl fluoride | 5 | 20 | |
Systox, see Demeton** | |||
2, 4, 5, T | — | 10 | |
Tantalum | — | 5 | |
TEDP–skin | — | 0.2 | |
Teflon** decomposition products | — | A2 | |
Tellurium | — | 0.1 | |
Tellurium hexafluoride | 0.02 | 0.2 | |
TEPP–skin | — | 0.05 | |
C | Terphenyls | 1 | 9 |
1, 1, 1, 2–Tetrachloro–2, 2–difluoroethane | 500 | 4,170 | |
1, 1, 2, 2–Tetrachloro–1, 2–difluoroethane | 500 | 4,170 | |
1, 1, 2, 2–Tetrachloroethane–skin | 5 | 35 | |
Tetrachloroethylene, see Perchloroethylene | |||
Tetrachloromethane, see Carbon tetrachloride | |||
Tetrachloronaphthalene–skin | — | 2 | |
Tetraethyl lead (as Pb)–skin | — | 0.075 | |
Tetrahydrofuran | 200 | 590 | |
Tetramethyl lead (TML) (as Pb)–skin | — | 0.075 | |
Tetramethyl succinonitrile–skin | 0.5 | 3 | |
Tetranitromethane | 1 | 8 | |
Tetryl (2, 4, 6–trinitrophenylmethylnitramine)–skin | — | 1.5 | |
Thallium (soluble compounds)–skin | — | 0.1 | |
Thiram | — | 5 | |
Tin (inorganic compounds, except SnH 4 and SnO 2 ) | — | 2 | |
Tin (organic compounds) | — | 0.1 | |
Titanium dioxide | — | 15 | |
Toluene (toluol) | 200 | 750 | |
C | Toluene–2, 4–diisocyanate | 0.02 | 0.14 |
o–Toluidine–skin | 5 | 22 | |
Toxaphene, see Chlorinated camphene | |||
Tributyl phosphate | — | 5 | |
1, 1, 1–Trichloroethane, see Methyl chloroform | |||
1, 1, 2–Trichloroethane–skin | 10 | 45 | |
Trichloroethylene | 100 | 535 | |
Trichloromethane, see Chloroform | |||
Trichloronaphthalene–skin | — | 5 | |
1, 2, 3–Trichloropropane | 50 | 300 | |
1, 1, 2–Trichloro 1, 2, 2–trifluoroethane | 1,000 | 7,600 | |
Triethylamine | 25 | 100 | |
Trifluoromonobromomethane | 1,000 | 6,100 | |
2, 4, 6–Trinitrophenol, see Picric acid | |||
2, 4, 6–Trinitrophenylmethylnitramine, see Tetryl | |||
Trinitrotoluene–skin | — | 1.5 | |
Triorthocresyl phosphate | — | 0.1 | |
Triphenyl phosphate | — | 3 | |
Tungsten and compounds, as W soluble* | — | 1 | |
Insoluble | — | 5 | |
Turpentine | 100 | 560 | |
Uranium (natural), soluble and insoluble compounds, (as U)* | — | 0.2 | |
C | Vanadium (V 2 O 5 dust) | — | 0.5 |
(V 2 O 5 fume) | — | 0.1 | |
Vinyl benzene, see Styrene | |||
C | Vinyl chloride | 500 | 1,300 |
Vinylcyanide, see Acrylonitrile | |||
Vinyl toluene | 100 | 480 | |
Warfarin | — | 0.1 | |
Xylene (xylol) | 100 | 435 | |
Xylidine–skin | 5 | 25 | |
Yttrium | — | 1 | |
Zinc chloride fume | — | 1 | |
Zinc oxide fume | — | 5 | |
Zirconium compounds (as Zr) | — | 5 |
____
(a) Parts of vapor or gas per million parts of contaminated air by volume at 25 degrees Centigrade and 760 mm. Hg pressure.
(b) Approximate milligrams of particulate per cubic meter of air.
(d) An atmospheric concentration of not more than 0.02 ppm, or personal protection may be necessary to avoid headache.
* 1969 addition.
** Registered trade name.
A No exposure or contact permitted by any route (respiratory, oral or skin).
C Ceiling limit which shall not be exceeded even momentarily or infrequently.
A1 No exposure or contact permitted by any route (respiratory, oral or skin).
A2 No TLV recommended pending termination of toxicity or products, but air concentrations should be minimal.
TABLE II—Mineral Dusts
Substance | Million Particles Per Cubic Foot* |
---|---|
Asbestos | 5 |
Dust (nuisance, no free silica) | 50 |
Graphite (natural) | 15 |
Mica (below 1% free silica) | 20 |
Portland cement | 50 |
Silica— | |
Class I** | 50 |
Class II** | 20 |
Class III** | 10 |
Class IV** | 5 |
Slate (below 1% free silica) | 50 |
Soapstone (below 1% free silica) | 20 |
Talc (below 1% free silica) | 20 |
Tremolite | 5 |
Total dust (below 1% free silica) | 50 |
____
* Using the light field low–power method of counting as described in the U.S. Public Health Report 47 No. 12, March 12, 1932, pp. 669-672 or its equivalent and a standard type impinger or other equivalent instrument for taking atmospheric dust samples.
** Class I rock. Any rock formation uniformly containing up to and including 5%, by weight, of free silicon dioxide.
** Class II rock. Any rock formation uniformly containing more than 5%, up to and including 10%, by weight, of free silicon dioxide.
** Class III rock. Any rock formation uniformly containing more than 10%, up to and including 40%, by weight, of free silicon dioxide.
** Class IV rock. Any rock formation containing more than 40%, by weight, of free silicon dioxide.
12 CRR-NY 12-3.1
Current through March 15, 2022
End of Document |