{"data":{"id":"us/42-cfr-84.163","jurisdiction":"us","citation":"42 CFR 84.163","heading":"Man test for gases and vapors; Type C supplied-air respirators, demand and pressure-demand classes; test requirements.","body":"(a) The completely assembled respirator will be worn in a chamber containing 0.1 ±0.025 percent isoamyl acetate vapor, the intake of the hose will be connected to a suitable source of respirable air, and not more than 25 percent of the hose length will be located in isoamyl acetate-free air.\n(b) The test will be conducted at the minimum pressure with the maximum hose length and will be repeated at the maximum pressure with the minimum hose length.","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 J—Supplied-Air Respirators"],"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":"65fdbfedb5e5ec69542626de5b1be2fead3eb673fcc78dd9a27aa1657beec738","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.162","next":"us/42-cfr-table-to-subpart-j-of-part-84"},"notice":"GroundRules: Original legal text. Not legal advice."}