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i TABLE 40-B. THRESHOLD LIMIT VALUES FOR 1963 (Continued) ppm* ng/cv m* Snbltcncoppm0 ">8/ca Sobitonc. mg/ca ELEM EN TS OF IN D U S T R IA L TOXICOLOGY 1 ,1 -Dime!hvthydrozme --Skm 05 Dimettiylsulfote--Skm I Dtmtrotoentene--Skm -- Dirntretotueno--Skin -- Dinitro-o-cresoL---Sktn -- Dioxcne (diethytene droxide) . 100 Dipropylene glycol methyl other 100 EPN (O-ethvJ O-pmitro- phenyl thlonoben- zenephosphonote I -- Skm . -- Ethyl ocetote 400 Ethyl ecrytote--Skm 25 Ethyl olcoho! ethanol) 1,000 Ethylomtne . 25 C Ethylbenzene 200 Ethyl bromide 200 Ethyl chloride 1,000 Ethyl ether 400 Ethyl formate 100 C Ethyl mercaptan 20 Ethyl silicate 100 Ethylene chkrohydnn-- Skin 5 Ethylenediamme 10 Ethylene glycol dmi- trate (Combined EGON + NG)--Skm - 02 5 Ethylene oxide 50 2-Ethoxyothonol (Cellosotve) 200 2-Ethoxyethytocetoto (Cellosolve Acetote) 100 Ferbam (ferric dimethyl dithrocartoamete) Ferravanodtum dust Fluonde (as F) ___ Fluorine 01 Ffuorotnchteromethane 1,000 Formoktehyde 5 Furfural 5 Furfuryl alcohol 50 Gasolene SCO Glycidol (23-Epoxy-1- propanol) 50 I 5 1 1S 02 360 600 05 1,400 100 1,900 45 870 890 2,600 1,200 300 52 850 16 30 12 g 90 740 540 15 1 2! 0: 5,600 6 20 200 2.000 150 Heptone In-heptane) . Hexane In-hexene) Hexanono (methyl butyl ketone) sec-Hexyl acetate Hexone (methyl isobutyl ketone) C Hydrazine---Skin Hydrogen bromide C Hydrogen chloride Hydrogen cyanide--Skm Hydrogen fluoride Hydrogen peroxide, 90% . Hydrogen selemde C Hydrogen sulfide . Hydroquinene C Iodine Iron oxide fume Isophorono Isopropylemma 500 500 100 50 100 I 3 5 10 3 I 0 05 20 -- 01 -- 25 5 ^ Ketene . . 05 Leod -- Lead onenote Lindane (hexochlorocy- -- clohexone, gomme Isomer) .-- Lithium hydride -- Magnesium axide fume -- Malathion (O O-dimethyl diihiophosphote of diethyl mercoptosuc- dnotel--Skin -- C Manganese -- Mercury--Skin -- Mercury Iorganic com- pounds)--Skm Moiityl oxide -- 25 Methoxychler (2,2-di-pethoxyphenyl-1, l, I -hrtenloroethano) Methyl ocetote Methyl acetylene Methyl acrylate--Skm Mothylol (dtmethoxy- 200 1,000 10 methane) ... Methyl alcohol 7,000 1 methanol) 200 C Methyl bromide--Skin 20 2,000 1,600 410 295 410 13 10 7 II 2 14 02 30 2 ) 15 140 12 2,0 09 02 o 15 05 0025 15 15 5 01 001 100 6)3 1,650 35 3,100 260 60 Methyl ceilnotve (2-methoxyethanof) --Skin Methyl cellosotvo ace tate (ethylene gtycol manomethyl ether ocetote C Methyl chloride Methyl ditoroform 11,1, 1 -trtchloreethane) Methylcyclohexane Methylcyctohexano) Methylcyelohexonone Methyl formate Methyl aobutyl corbmol (methyl omyl olcohol) C Methyl mercaptan a-Methyl styrene Methylene ditorldo (drch loromethone > Monomethyl onllme - Skm Molybdenum (soluble compounds) tinsoluble conv pounds) Naphtha (coal tor) Naphtha (petroleum) 6-Nophthylomme Nickel corbonyt Ntcotfno--Skin Nitric octd p-NItroamtlnfr--Skin Nitrobenzene* -Stun Nitroethone C Nitrogen dtaxide C Nitroglycerin (com bined EGON + NG>-- Skin Nitromothane 1-Nitropropone 2-Nrtrapropane N-Nftrasodimethylo* mine (Dimethylnrtro- somtne)--Skm Nitrototueno--Skin Octane Osmium tetraxtdo Ozone 25 80 25 120 100 210 350 1,900 500 2,000 100 470 100 460 100 250 25 too 20 40 too 460 500 1.750 29 --5 -- 15 200 800 500 2,000 A-2 "0 001 0007 -- 05 10 25 16 1S 100 310 59 02 100 25 25 2 250 90 90 A-3 5 30 500 *350 0002 01 02