42 CFR 84.93
§ 84.93 Gas flow test; open-circuit apparatus.
United States · 42 CFR — Public Health · Status: effective
Cite this
- Citation
- 42 CFR 84.93, § 84.93 Gas flow test; open-circuit apparatus, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/201710
- Permanent ID
ys:prov:201710@1- SHA-256
84e78bff54f78fce09aba15e9be278229fb7ec8ace09e267f13b570a7027b322
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) A static-flow test will be performed on all open-circuit apparatus.
(b) The flow from the apparatus shall be greater than 200 liters per minute when the pressure in the facepiece of demand-apparatus is lowered by 51 mm. (2 inches) water-column height when full container pressure is applied.
(c) Where pressure demand apparatus are tested, the flow will be measured at zero gage pressure in the facepiece.
(d) Where apparatus with compressed-breathing-gas containers are tested, the flow test shall also be made with 3,450 kN/m. 2 (500 p.s.i.g.) container pressure applied.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.