Sparks, Anthony W. <br/><br/>
A breathing metabolic simulator for testing respiratory protective equipment / 
by Anthony W. Sparks, Richard L. Stein, and Jerry W. Stengel. 
 - Pgh. [i.e. Pittsburgh], Pa. :  U.S. Dept. of the Interior, Bureau of Mines,  1980. 
 - 18 p. :  ill. ;  27 cm. 
 - Report of investigation - Bureau of Mines ;  8496 .
 - Report of investigations (United States. Bureau of Mines) ;  8496. .
<br/><br/>Bibliography: p. 18. 
<br/><br/><label>LCCN: </label>80011727  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine safety--Equipment and supplies--Testing.<br/>Breathing apparatus--Testing.<br/>Respiration--Simulation methods.
<br/><br/><label>LC Class. No.: </label>TN23  TN295  / .U43 no. 8496 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.8 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.23:8496