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42 C.F.R. · Public Health
42 C.F.R. § 84.91

Breathing resistance test; exhalation.

Title 42 C.F.R. ● ACTIVE Primary Source
Regulatory Text

42 C.F.R. § 84.91 — Breathing resistance test; exhalation.

§ 84.91 Breathing resistance test; exhalation. (a) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of open-circuit apparatus with air flowing at a continuous rate of 85 liters per minute. (b) The exhalation resistance of demand apparatus shall not exceed 25 mm. (1 inch) water-column height. (c) The exhalation resistance of pressure-demand apparatus shall not exceed the static pressure in the facepiece by more than 51 mm. (2 inches) water-column height. (d) The static pressure (at zero flow) in the facepiece shall not exceed 38 mm. (1.5 inches) water-column height. (e) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of closed-circuit apparatus with a breathing machine as described in § 84.88, and the exhalation resistance shall not exceed 51 mm. (2 inches) water-column height.

Source: ecfr.gov · govinfo.gov — public domain Official Source ↗
Root-LD Entity Data
◈ Machine-Readable Provenance Record Root-LD v1.0 · boisestandard.org
Federation ID
BS-CFR42-SEC-09670C
Entity Class
REGULATION / FEDERAL-CFR-SECTION
Domain Signature
boisestandard.org
Citation
42 C.F.R. § 84.91
Corpus
CFR — Code of Federal Regulations
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✓ ACTIVE
Source
PRIMARY-SOURCE
Source Verified
✓ TRUE
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52765954615c1d52...
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Pending — corpus passes queued
The regulatory text of 42 C.F.R. § 84.91 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
Navigate Corpus — Title 42 C.F.R.
← 42 C.F.R. § 84.90 42 C.F.R. § 84.92 →
Title 42 — Public Health
42 C.F.R. § 2a.142 C.F.R. § 2a.242 C.F.R. § 2a.342 C.F.R. § 2a.442 C.F.R. § 2a.542 C.F.R. § 2a.642 C.F.R. § 2a.742 C.F.R. § 2a.842 C.F.R. § 2.142 C.F.R. § 2.242 C.F.R. § 2.342 C.F.R. § 2.442 C.F.R. § 2.1142 C.F.R. § 2.1242 C.F.R. § 2.1342 C.F.R. § 2.1442 C.F.R. § 2.1542 C.F.R. § 2.1642 C.F.R. § 2.1742 C.F.R. § 2.1842 C.F.R. § 2.1942 C.F.R. § 2.2042 C.F.R. § 2.2142 C.F.R. § 2.2242 C.F.R. § 2.2342 C.F.R. § 2.3142 C.F.R. § 2.3242 C.F.R. § 2.3342 C.F.R. § 2.3442 C.F.R. § 2.35
42 C.F.R. — public domain ← All Legislation
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boisestandard.org → United States → Law → CFR → Title 42 → 42 C.F.R. § 84.91