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Scope

1.1 This practice describes the detection and measurement of time weighted average (TWA) concentrations of toxic gases or vapors using length-of-stain colorimetric dosimeter tubes. A list of some of the gases and vapors that can be detected by this practice is provided in Annex A1. This list is given as a guide and should be considered neither absolute nor complete.

1.2 Length-of-stain colorimetric dosimeters work by diffusional sampling. The results are immediately available by visual observation; thus no auxiliary sampling, test nor analysis equipment are needed. The dosimeters, therefore, are extremely simple to use and very cost effective.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

The Federal Occupational Safety and Health Administration in 29 CFR 1910.1000 Subpart Z designates that certain gases and vapors present in work place atmospheres must be controlled so that their concentrations do not exceed specified limits.

This practice will provide a means for the determination of airborne concentrations of certain gases and vapors listed in 29 CFR 1910.1000.

A partial list of chemicals for which this practice is applicable is presented in Annex A1 with current Threshold Limit Values (TLV) (2) and typical measurement ranges for the selected chemicals as obtained from various manufacturer’specifications.

This practice may be used for either personal or area monitoring.

Keywords

air monitoring; calorimetric dosimeter tubes; diffusional sampling; dosimeter tubes; sampling and analysis; toxic gases and vapors; workplace atmospheres; ICS Number Code 13.320 (Alarm and warning systems)

To find similar documents by ASTM Volume:

11.07 (Atmospheric Analysis)

To find similar documents by classification:

13.320 (Alarm and warning systems Burglar alarm and warning systems, see 13.310 Warning devices for road vehicles, see 43.040.20)

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