{"data":{"id":"us/42-cfr-84.161","jurisdiction":"us","citation":"42 CFR 84.161","heading":"Man test for gases and vapors; Type B and Type BE respirators; test requirements.","body":"(a) The completely assembled respirator will be worn in a chamber containing 0.1 ±0.025 percent isoamyl acetate vapor, and the intake of the hose, and not more than 25 percent of the hose length will be located in isoamyl acetate-free air.\n(b) The man in the isoamyl acetate atmosphere will draw his inspired air through the hose and connections by means of his lungs alone.","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":"b1087f1684de5b71f2d9f07d5e7d547bbb975e5ebf9548787cc13b8747cbe602","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.160","next":"us/42-cfr-84.162"},"notice":"GroundRules: Original legal text. Not legal advice."}