1.1 This specification covers alloys of copper and nickel in a variety of wrought shapes suitable for external and internal use in electron devices. 1.2 The values stated in SI units are to be regarded as standard. No ot This specification covers electronic grade alloys of copper and nickel in wrought forms suitable for external and internal use in electron devices. The alloy shall be free from directional properties and shall be handled in such a manner that oxide con