01558cam a22003011 4500 l 32000028 DLC 20260227111533.0 910924s1932 dcuaf f000 0 eng c l 32000028 (OCoLC)24438467 U.S. Dept. of Labor. Library CLU CLU DLC premarc HD8051 .A62 no. 562 National Fire Protection Association. Safety codes for the prevention of dust explosions. National Fire Protection Association and United States Department of Agriculture, Sponsors. American Standard, Approved by the American Standards Association. December, 1931. Washington, D.C., U.S. Govt. Print. Off., 1932. vii, 87 p. incl. illus., tables. plates. 23 cm. United States. Bureau of Labor Statistics. Bulletin, no. 562 Safety code series At head of title: United States Department of Labor. W.N. Doak, secretary. Bureau of Labor Statistics. Ethelbert Stewart, Commissioner. David J. Price, chairman, of Committee on Dust Explosion Hazards, U.S. Bureau of Chemistry and Soils, Department of Agriculture. A "Tentative American Standard" was issued in 1927 as Bulletin no. 433 of the United States Bureau of Labor Statistics. Dust explosions. United States. Department of Agriculture. American Standards Association. Bulletin of the United States Bureau of Labor Statistics ; 562. 36047 36047