42 C.F.R. § 84.1149 Airflow resistance tests; all dust, fume, and mist respirators; minimum requirements.
Title 42 - Public Health
(a) Resistance to airflow will be measured in the facepiece, mouthpiece, hood, or helmet of a dust, fume, or mist respirator mounted on a test fixture with air flowing at a continuous rate of 85 liters per minute, both before and after each test conducted in accordance with §§84.1144 through 84.1147. (b) The maximum allowable resistance requirements for dust, fume, and mist respirators are as follows:
Title 42: Public Health
PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
Subpart KK—Dust, Fume, and Mist; Pesticide; Paint Spray; Powered Air-Purifying High Efficiency Respirators and Combination Gas Masks
§ 84.1149 Airflow resistance tests; all dust, fume, and mist respirators; minimum requirements.
Maximum Resistance [mm. water-column height]------------------------------------------------------------------------ Initial Final Type of respirator inhalation inhalation Exhalation------------------------------------------------------------------------Pneumoconiosis- and fibrosis- 12 15 15 producing dusts, or dusts and mists...........................Dust, fume, and mist, with single- 30 50 20 use filter......................Dust, fume, and mist, with 20 40 20 reusable filter.................Radon daughter................... 18 \1\ 25 15Asbestos dust and mist........... 18 25 15------------------------------------------------------------------------\1\ Measured after silica dust test described in § 84.1144.
Browse Previous |
Browse Next
