American Society for Testing and Materials (ASTM). Current edition approved Feb. 1, 2006. Published February 2006. Originally approved in 1982. Withdrawn Dec. 15, 1993. Reinstated March 10, 2000. Last previous edition approved in 2000 as B 706 – 00. 7 p. This specification establishes the requirements for copper alloy UNS No. C69100 seamless pipe in standard pipe sizes, both regular and extra strong, and seamless tube in straight lengths for general engineering purposes.