§33.32. Determination of dust concentration. — Inbound Citations
30 C.F.R. § 33.32
Statutory Authority
Cited by 1 regulation in release Current.
Citations to §33.32(a)
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(b) Under each prescribed test condition, the net concentration of airborne dust at each drill operator's position shall not exceed 10 million particles (5 microns or less in diameter) per cubic foot of air when determined in accordance with the method given in § 33.32(a).