AWS B2.1-1-210:1996

Standard Welding Procedure Specification (WPS) for Gas Tungsten Arc Welding with Consumable Inserts of Carbon Steel (M-1/ P-1/S-1, Group 1 or 2), 1/8 Through 1-1/2 Inch Thick, INMs-1 and ER70S-2, As-Welded or PWHT Condition, Primarily Pipe Applications

American Welding Society , 01/01/1996