§84.172. Airflow resistance test.
42 C.F.R. § 84.172
Resistance to airflow will be measured in the tight-fitting respiratory inlet covering of a complete particulate respirator mounted on a test fixture with air flowing at continuous rate of 85 ±2 liters per minute, before each test conducted in accordance with § 84.173.
Resistance of a complete tight-fitting powered air-purifying particulate respirator system will be measured with the blower off if the manufacturer indicates that the respirator should not be doffed in the event of a blower failure.
The maximum allowable resistance requirements for air-purifying particulate respirators are as follows:
Notes, amendments, and revision history
Source
Source: 85 FR 20608, Apr. 14, 2002, unless otherwise noted.
Authority
Authority: 29 U.S.C. 651 et seq.; 30 U.S.C. 3, 5, 7, 811, 842(h), 844.
Source
Source: 60 FR 30355, June 8, 1995, unless otherwise noted.