CFR 30-90.205-2014 Mineral Resources. Part90:Mandatory health standards—coal miners who have evidence of the development of pneumoconiosis. Section90.205:Approved sampling devices; operation; air flowrate.
(a) Sampling devices approved in accordance with part 74 (Coal Mine Dust Personal Sampler Units) of this title shall be operated at the flowrate of 2.0 liters of air per minute, or at a different flowrate as prescribed by the Secretary and the Secretary of Health and Human Services for the particular device.
CFR 30-90.205-2014 history
1980CFR 30-90.205-2014 Mineral Resources. Part90:Mandatory health standards—coal miners who have evidence of the development of pneumoconiosis. Section90.205:Approved sampling devices; operation; air flowrate.