02112nam 2200517 450 991070566060332120170512093746.0(CKB)5470000002451790(OCoLC)986996420(EXLCZ)99547000000245179020170512d2012 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierReissue of P09-V-08, procedures for revoking MSHA certifications to take respirable dust samples or to maintain and calibrate approved dust sampling devicesArlington, Virginia :U.S. Department of Labor, Mine Safety and Health Administration,2012.1 online resourceProgram policy letter ;no. P12-V-01"Effective date March 8, 2012."Procedures for revoking MSHA certifications to take respirable dust samples or to maintain and calibrate approved dust sampling devicesCoal mines and miningDust controlUnited StatesMines and mineral resourcesUnited StatesMine dustsUnited StatesMeasurementMine safetyUnited StatesCoal mines and miningDust controlfastMine dustsMeasurementfastMine safetyfastMines and mineral resourcesfastUnited StatesfastCoal mines and miningDust controlMines and mineral resourcesMine dustsMeasurement.Mine safetyCoal mines and miningDust control.Mine dustsMeasurement.Mine safety.Mines and mineral resources.United States.Mine Safety and Health Administration,GPOGPOBOOK9910705660603321Reissue of P09-V-08, procedures for revoking MSHA certifications to take respirable dust samples or to maintain and calibrate approved dust sampling devices3329747UNINA