AWS A5.11/A5.11M:2005
Specification for Nickel and Nickel Alloy Welding Electrodes for Shielded Metal Arc Welding
standard by American Welding Society, 01/01/2005
AWS B2.1:2005
Specification for Welding Procedure and Performance Qualification (includes 2006 Errata)
standard by American Welding Society, 11/04/2004