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preface to fifteenth edition

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PRACTICAL LABORATORY INFORMATION 11.123<br />

TABLE 11.49<br />

TLV Concentration Limits for Gases and Vapors (Continued)<br />

Maximum allowable<br />

exposure<br />

Substance ppm mg · m 3 Toxicity<br />

Butyl mercaptan 0.5 1.5<br />

p-tert-Butyl<strong>to</strong>luene 10<br />

()-Camphor 2 12<br />

Caprolactam 5<br />

Carbon dioxide 5000 9000<br />

Carbon disulfide 10 31<br />

Carbon monoxide 25 28 <strong>to</strong>xic<br />

Carbon tetrachloride 10 65<br />

Carbonyl chloride 0.1<br />

Carbonyl fluoride 2 <strong>to</strong>xic<br />

Chlordane 0.5<br />

Chlorine 0.5 1.5 highly <strong>to</strong>xic<br />

Chlorine dioxide 0.1 0.3<br />

Chlorine trifluoride 0.1 0.4 highly <strong>to</strong>xic<br />

Chloroacetaldehyde 1 3<br />

-Chloroace<strong>to</strong>phenone 0.05 0.3<br />

Chloroacetyl chloride 0.05<br />

Chlorobenzene 10 46<br />

2-Chloro-1,3-butadiene 10 carcinogen<br />

Chlorodifluoromethane (CFC 22) 1000 3540<br />

Chloroethane 100 264 low <strong>to</strong>xicity<br />

2-Chloroethanol 1 3.3<br />

Chloroethylene (vinyl chloride) 5 13 <strong>to</strong>xic, carcinogen<br />

Chloroform (trichloromethane) 10 49<br />

Chloromethane 50 103 <strong>to</strong>xic, carcinogen<br />

1-Chloro-1-nitropropane 20 100<br />

Chloropentafluoroethane (CFC 115) 1000 6320<br />

3-Chloro-1-propene (allyl chloride) 1 3 carcinogen<br />

o-Chloro<strong>to</strong>luene 50 259<br />

Chlorotrifluoroethylene<br />

<strong>to</strong>xic<br />

Chromyl chloride (CrO 2 Cl 2 ) 0.025 carcinogen<br />

o-Cresol (also m-, p-) 5 22<br />

trans-Cro<strong>to</strong>naldehyde 2 5.7<br />

Cyanogen 10 20 highly <strong>to</strong>xic<br />

Cyanogen chloride 0.3<br />

Cyclohexane 300 1030<br />

Cyclohexanol 50 206<br />

Cyclohexanone 25 100<br />

Cyclohexene 300 1015<br />

Cyclohexylamine 10 41<br />

1,3-Cyclopentadiene 75<br />

Cyclopentane 600 1720<br />

Cyclopropane<br />

anesthetic<br />

2,4-D 10<br />

DDT 1<br />

Decaborane 0.05 0.3<br />

Diace<strong>to</strong>ne alcohol 50 238<br />

2,2’-Diaminodiethylamine 1 4.2<br />

Diazomethane 0.2 carcinogen

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