§ 84.1149Airflow resistance tests; all dust, fume, and mist respirators; minimum requirements.
(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:
[mm. water-column height]
Type of respirator
1 Measured after silica dust test described in § 84.1144.
Pneumoconiosis- and fibrosis-producing dusts, or dusts and mists
Dust, fume, and mist, with single-use filter
Dust, fume, and mist, with reusable filter
Asbestos dust and mist
Title 42 published on 2014-10-01
The following are only the Rules published in the Federal Register after the published date of Title 42.
For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.
This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.