42 CFR 84.163 - Man test for gases and vapors; Type C supplied-air respirators, demand and pressure-demand classes; test requirements.
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(a) The completely assembled respirator will be worn in a chamber containing 0.1 ±0.025 percent isoamyl acetate vapor, the intake of the hose will be connected to a suitable source of respirable air, and not more than 25 percent of the hose length will be located in isoamyl acetate-free air.
Title 42 published on 2014-10-01
no entries appear in the Federal Register after this date.