---
kind: "section"
citation: "42 C.F.R. § 84.98"
title: "42"
number: "84.98"
heading: "Tests during low temperature operation."
url: "https://uscodex.org/cfr/42/84.98"
---

# §84.98. Tests during low temperature operation.

- (a) The applicant shall specify the minimum temperature for safe operation and two persons will perform the tests described in paragraphs [(c)](#c) and [(d)](#d) of this section, wearing the apparatus according to applicant's directions. At the specified temperature, the apparatus shall meet all the requirements described in [paragraph (e)](#e) of this section.
- (b) The apparatus will be precooled at the specified minimum temperature for 4 hours.
- (c) The apparatus will be worn in the low temperature chamber for 30 minutes, or for the service time of the apparatus, whichever is less.
- (d) During the test period, alternate 1-minute periods of exercise and rest will be required with the exercise periods consisting of stepping onto and off a box 21.5 cm. (8 1/2 inches) high at a rate of 30 cycles per minute.
- (e)
  - (1) The apparatus shall function satisfactorily at the specified minimum temperature on duplicate tests.
  - (2) The wearer shall have sufficient unobscured vision to perform the work.
  - (3) The wearer shall not experience undue discomfort because of airflow restriction or other physical or chemical changes in the operation of the apparatus.
- (f) Auxiliary low-temperature parts which are commercially available to the user may be used on the apparatus to meet the requirements described in [paragraph (e)](#e) of this section.

## 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.