{"data":{"id":"us/42-cfr-84.96","jurisdiction":"us","citation":"42 CFR 84.96","heading":"Service time test; closed-circuit apparatus.","body":"(a) The closed-circuit apparatus will be classified according to the length of time it supplies adequate breathing gas to the wearer during man test No. 4 described in Table 4 of this subpart.\n(b) The service time obtained on man test No. 4 will be used to classify the closed-circuit apparatus in accordance with § 84.53.","path":["Title 42—Public Health","CHAPTER I—PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER G—OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES","PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES","Subpart H—Self-Contained Breathing Apparatus"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"ae94b42cd425bc6d3cb8aac444a4c3473ae1463095c7b64b3ad35b42579c7d91","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.95","next":"us/42-cfr-84.97"},"notice":"GroundRules: Original legal text. Not legal advice."}