Safety codes for the prevention of dust explosions. 
National fire protection association and United States Department of agriculture, sponsors.  Tentative American standard, approved July 2, 1926, by American engineering standards committee.  January, 1927. 
 - Washington,  Govt. print. off.,  1927. 
 - iv, 40 p.  23 cm. 
 - Bulletin of the United States Bureau of labor statistics,  no. 433.  Safety code series .
<br/><br/> 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. 
<br/><br/><label>LCCN: </label>l  27000056  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial safety.<br/>Dust explosions.<br/>Explosions.
<br/><br/><label>LC Class. No.: </label>HD8051  / .A62 no. 433