TY - BOOK ED - National Fire Protection Association. ED - United States. ED - United States. TI - Safety codes for the prevention of dust explosions T2 - Bulletin of the United States Bureau of labor statistics, AV - HD8051 .A62 no. 433 PY - 1927/// CY - Washington PB - Govt. print. off. KW - Industrial safety KW - Dust explosions KW - Explosions N1 - At head of title: U.S. Department of labor. James J. Davis, secretary. Bureau of labor statistics. Ethelbert Stewart, commissioner; Issued also as House doc. 526, 69th Cong., 2d sess ER -