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

84.162 - Man test for gases and vapors; Type C respirators, continuous - flow class and Type CE supplied - air respirators; test requirements.

  (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.

  (b) The minimum flow of air required to maintain a positive pressure in the respiratory-inlet covering throughout the entire breathing cycle will be supplied to the wearer, provided however, that airflow shall not be less than 115 liters per minute for tight-fitting and not less than 170 liters per minute for loose-fitting respiratory inlet-coverings.

  (c) The test will be repeated with the maximum rate of flow attainable within specified operating pressures.