IPC 4556
Specification for Electroless Nickel/Electroless Palladium/Immersion Gold (ENEPIG) Plating for Printed Circuit Boards
standard by Association Connecting Electronics Industries, 01/01/2013
NACE ASAE-ASABE B11 CGA ICC CTA
Qualification and Performance Specification for Rigid Printed Boards, Includes Amendment 1
standard by Association Connecting Electronics Industries, 09/01/2017