ASTM B 70 - 90 (Reapproved 2007) Standard Test Method for Change of Resistance With Temperature of Metallic Materials for Electrical Heating

American Society for Testing and Materials (ASTM). Current edition approved May 1, 2007. Published May 2007. Originally approved in 1927. Last previous edition approved in 2001 as B 70 – 90 (2001). 2 p. This test method covers the determination of the change of resistance with temperature of metallic materials for electrical heating, and is applicable over the range of service temperatures