Astm B 780 – 98 (Reapproved 2004) Pdf free download May 6, 2022November 20, 2020 by Mike Standard Specification for 75 % Silver, 24.5 % Copper, 0.5 % Nickel Electrical Contact Alloy1 This standard is issued under…Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here