Osha

Description

PELb

Ethylene oxide

1 ppm

Ethylene oxide, STELa

5 ppm

Xylene

100 ppm

Formaldehyde

0.3 ppm

Carbon monoxide

50 ppm

Smoke-check

Source: Cole-Parmer Instrument Co.

Notes: aShort-term exposure limits for 15-min exposure; all others require 8

Source: Cole-Parmer Instrument Co.

Notes: aShort-term exposure limits for 15-min exposure; all others require 8

bOSHA permissible exposure levels.

ing. The testor simply opens the detector tube, inserts it into the tube holder, and pulls a predetermined amount of sample air through the CDT. The color progression on the packed adsorption bed indicates the concentration of a particular toxic gas. Disposable CDTs are inexpensive, and some 250 different tubes are available. Table 5.29.4 lists some of the available tubes.

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