TY - BOOK ID - 137067585 TI - Operator respirable dust sampling requirements PY - 2009 PB - [Arlington, Va.] : [U.S. Dept. of Labor, Mine Safety and Health Administration], DB - UniCat KW - Mine safety KW - Coal mines and mining KW - Mine dusts KW - Standards UR - https://www.unicat.be/uniCat?func=search&query=sysid:137067585 AB - ER -