American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2006. Published December 2006. Originally approved in 1991. Last previous edition approved in 2001 as B 810 – 01a. 6 p. This test method covers the calibration of atmospheric corrosion test chambers for electrical contacts that produce an adherent film of corrosion product on copper, such as a test comprised of a mixture of flowing gases that react with copper.