AWS B2.1-8-214:1997

Standard Welding Procedure Spec (WPS) for Gas Tungsten Arc Welding Followed by Shielded Metal Arc Welding of Austenitic Stainless Steel (M-8/P-8/S-8, Group 1), 1/8 through 1-1/2 in. Thick, ER3XX, ER3XX-XX, As-Welded Condition, Primarily Pipe Applications
standard by American Welding Society, 03/20/1997

AWS B2.1-1-233:2006

Standard Welding Procedure Specification (Swps) for Argon Plus 25% Carbon Dioxide Shielded Gas Metal Arc Welding (Short Circuting Transfer Mode) followed by Argon Plus 2% Oxygen Shielded Gas Metal Arc Welding (Spray Transfer Mode) of Carbon Steel (M-1/P-1/S-1) Groups 1 and 2, 1/8 through 1-1/2 inch
standard by American Welding Society, 01/01/2006

AWS B2.1-1/8-228:2002 (R2013)

Standard Welding Procedure Specification (SWPS) for Shielded Metal Arc Welding of Carbon STeel (M-1/P-1/S-1, Groups 1 or 2) to Austenitic Stainless STeel (M-8/P-8/S-8, Group 1), 1/8 through 1-1/2 Inch Thick, E309(L)-15,-16,or-17
standard by American Welding Society, 01/01/2002