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preface to fifteenth edition

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11.122 SECTION 11<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 />

Acrylic acid 2 5.9<br />

Acrylonitrile 2 4.3<br />

Acrylonitrile 20 45<br />

Allyl alcohol 2 4.8<br />

Allyl chloride 1 3<br />

Allyl glycidyl ether 5 22<br />

Ammonia 25 18 <strong>to</strong>xic<br />

Aniline 2 7.6 carcinogen<br />

Arsine 0.05 0.2 highly <strong>to</strong>xic<br />

Benzene 10 32 carcinogen<br />

Benzenethiol 0.5 2.3<br />

p-Benzoquinone 0.1<br />

Benzoyl chloride 0.5<br />

Benzoyl peroxide 5<br />

Benzyl acetate 10<br />

Benzyl chloride 1 carcinogen<br />

Biphenyl 0.2<br />

Bis(2-aminoethyl)amine 1<br />

Bis(2-chloroethyl) ether 5 29<br />

Bis(2-chloromethyl) ether 0.001 carcinogen<br />

Bis(2-ethylhexyl) phthalate 5<br />

Boron tribromide 1<br />

Boron trichloride<br />

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

Boron trifluoride 1 3 highly <strong>to</strong>xic<br />

Bromine 0.1 0.7<br />

Bromine pentafluoride 0.1 highly <strong>to</strong>xic<br />

Bromine trifluoride<br />

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

Bromochloromethane (Halon 1011) 200 1060<br />

Bromoethane 5 22 carcinogen<br />

Bromoethylene 5 22 slightly <strong>to</strong>xic<br />

Bromoform 0.5 5<br />

Bromomethane 5 19 highly <strong>to</strong>xic,<br />

carcinogen<br />

1,3-Butadiene 2 slightly anesthetic,<br />

carcinogen<br />

Butane 800 1900 slightly anesthetic<br />

1-Butanethiol 0.5 1.8<br />

1-Butanol 50 152<br />

2-Butanol 100 303<br />

2-Butanone 200 590<br />

2-Bu<strong>to</strong>xyethanol 25 121<br />

Butyl acetate 150 710<br />

sec-Butyl acetate 200 950<br />

tert-Butyl acetate 200 950<br />

Butyl acrylate 10<br />

tert-Butyl alcohol 100 300<br />

Butylamine 5 15<br />

tert-Butyl chromate (as CrO 3 ) 0.1<br />

Butyl glycidyl ether 50 270

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