American Society for Testing and Materials (ASTM). Current edition approved Feb. 1, 2006. Published February 2006. Originally approved in 1920. Last previous edition approved in 2001 as B 36/B 36M – 01. 8 p. This specification establishes the requirements for brass plate, sheet, strip, and rolled bar of the following alloys Copper Alloy UNS No.: C21000, C22000, C22600, C23000, C24000, C26000, C26800, C27200, C28000.