ASTM B 277 - 95 (Reapproved 2006) Standard Test Method for Hardness of Electrical Contact Materials

American Society for Testing and Materials (ASTM). Current edition approved June 1, 2006. Published June 2006. Originally approved in 1952. Last previous edition approved in 2001 as B 277 – 95 (2001). 2 p. This test method covers the determination of the hardness of metallic materials used for electrical contacts. Rockwell, Rockwell superficial, Brinell, and microhardness tests are included, along with information on the limitations and use of these tests.