Air contaminants :  permissible exposure limits (Title 29 Code of federal regulations, part 1910.1000) 

 - 	[Washington, D.C.] :  U.S. Dept. of Labor, Occupational Safety and Health Administration,  1989 
 - 	78 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution--Standards--United States<br/>Industrial hygiene--Law and legislation--United States<br/>Air--Pollution--Standards.
<br/><br/><label>Dewey Class. No.: </label>628.53