---
kind: "section"
citation: "42 C.F.R. § 84.94"
title: "42"
number: "84.94"
heading: "Gas flow test; closed-circuit apparatus."
url: "https://uscodex.org/cfr/42/84.94"
---

# §84.94. Gas flow test; closed-circuit apparatus.

- (a) Where oxygen is supplied by a constant-flow device only, the rate of flow shall be at least 3 liters per minute for the entire rated service time of the apparatus.
- (b) Where constant flow is used in conjunction with demand flow, the constant flow shall be greater than 1.5 liters per minute for the entire rated service time.
- (c) All demand-flow devices shall provide at least 30 liters of oxygen per minute when in the fully open position.

## Notes

### Authority

Authority: 29 U.S.C. 651 et seq.; 30 U.S.C. 3, 5, 7, 811, 842(h), 844.

### Source

Source: 60 FR 30355, June 8, 1995, unless otherwise noted.