Exhalation valve leakage test.

  1. Law
  2. CFR 42
  3. Public Health
  4. Public Health Service, Department of Health and Human Services
  5. Occupational Safety and Health Research and Related Activities
  6. Approval of Respiratory Protective Devices
  7. Air-Purifying Particulate Respirators
  8. Exhalation valve leakage test.

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§ 84.173 Exhalation valve leakage test.

(a) Dry exhalation valves and valve seats will be subjected to a suction of 25 mm water-column height while in a normal operating position.

(b) Leakage between the valve and valve seat must not exceed 30 mL per minute.


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