ASTM B 640 - 00 (Reapproved 2006) Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service

American Society for Testing and Materials (ASTM). Current edition approved March 15, 2006. Published April 2006. Originally approved in 1978. Last previous edition approved in B 640 – 00. 9 p. This specification establishes the requirements for welded copper tube for air conditioning and refrigeration service for use in connections, repairs, and alterations. The tube shall be made from one of the following coppers: UNS No. C10100, UNS No. C10200, UNS No. C12000, UNS No. C12200.