42 CFR 84.190 - Chemical cartridge respirators: description.

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§ 84.190 Chemical cartridge respirators: description.
(a) Chemical cartridge respirators including all completely assembled respirators which are designed for use as respiratory protection during entry into or escape from atmospheres not immediately dangerous to life and health, are described according to the specific gases or vapors against which they are designed to provide respiratory protection, as follows:
Type of chemical cartridge respirator 1 Maximum use concentration, parts per million
1 Not for use against gases or vapors with poor warning properties (except where MSHA or Occupational Safety and Health Administration standards may permit such use for a specific gas or vapor) or those which generate high heats of reaction with sorbent material in the cartridge.
2 Maximum use concentrations are lower for organic vapors which produce atmospheres immediately hazardous to life or health at concentrations equal to or lower than this concentration.
Ammonia 300
Chlorine 10
Hydrogen chloride 50
Methyl amine 100
Organic vapor 2 1,000
Sulfur dioxide 50
Vinyl chloride 10
(b) Chemical cartridge respirators for respiratory protection against gases or vapors, which are not specifically listed with their maximum use concentration, may be approved if the applicant submits a request for such approval, in writing, to the Institute. The Institute shall consider each such application and accept or reject the application after a review of the effects on the wearer's health and safety and in the light of any field experience in use of chemical cartridge respirators as protection against such hazards.

Title 42 published on 2014-10-01

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