ASTM A 922 - 05 (Reapproved 2010) Standard Specification for Silicon Metal

American Society for Testing and Materials (ASTM). Current edition approved April 1, 2010. Published May 2010. Originally approved in 1993. Last previous edition approved in 2005 as A922-05. 2p. This specification covers several grades of silicon metal.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. The SI equivalents of inchpound units given may be approximate.