AWS B2.1/B2.1M-BMG:2009-ADD1
Base Metal Grouping for Welding Procedure and Performance Qualification, Second Printing
standard by American Welding Society, 04/01/2009
AWS B2.1-22-015:2011
Standard Welding Procedure Specification (Swps) for Gas Tungsten Arc Welding of Aluminum (M/P/S-22 to M/P/S-22), 18 through 10 Gauge, in the As-Welded Condition, with or without Backing
standard by American Welding Society, 07/07/2010
AWS A5.14/A5.14M:2009
Specification for Nickel and Nickel-Alloy Bare Welding Electrodes and Rods-Includes Errata (2010)
standard by American Welding Society, 10/28/2008