ASTM B 693 - 91 (Reapproved 2006) Standard Specification for Silver-Nickel Electrical Contact Materials

American Society for Testing and Materials (ASTM). Current edition approved June 1, 2006. Published June 2006. Originally approved in 1981. Last previous edition approved in 2001 as B 693 – 91 (2001). 3 p. This specification covers electrical contact components made from silver nickel by powder metallurgical procedures.
This specification covers compositions within the silvernickel system normally specified by users of electrical contacts.