Ampian, Sarkis G.
Crystalline silica overview : occurrence and analysis / by Sarkis G. Ampian and Robert L. Virta. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1992. - ii, 27 p. : ill. ; 28 cm. - Information circular ; 9317 . - Information circular (United States. Bureau of Mines) ; 9317. .
Includes bibliographical references (p. 26-27).
92000700
Silica.
Silica--Toxicology.
X-rays--Diffraction.
TN295 TN948.S6 / .U4 no. 9317
622 s 549/.6/0287
I 28.27:9317
Crystalline silica overview : occurrence and analysis / by Sarkis G. Ampian and Robert L. Virta. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1992. - ii, 27 p. : ill. ; 28 cm. - Information circular ; 9317 . - Information circular (United States. Bureau of Mines) ; 9317. .
Includes bibliographical references (p. 26-27).
92000700
Silica.
Silica--Toxicology.
X-rays--Diffraction.
TN295 TN948.S6 / .U4 no. 9317
622 s 549/.6/0287
I 28.27:9317