Rynek pracy · 3.09.1998
Improving and Eliminating Regulations; Calibration and Maintenance Procedures for Coal Mine Respirable Dust Samplers
MSHA has revised and updated its Informational Report No. 1121 (IR 1121) to include currently approved sampling equipment and to permit the use of fast-response calibrators having a volumetric tube. The updated document is Informational Report No. 1240 (IR 1240). This proposed rule would update the existing incorporation by reference of IR 1121 in MSHA's coal mine respirable dust standards to reference IR 1240.