AWS B2.1.8.215 : 2001 : R2012
AWS B2.1.8.215 : 2001 : R2012
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR GAS TUNGSTEN ARC WELDING WITH CONSUMABLE INSERT ROOT OF AUSTENITIC STAINLESS STEEL (M-8/P-8/S-8, GROUP 1), 1/8 THROUGH 1-1/2 INCH THICK, IN3XX AND ER3XX, AS-WELDED CONDITION, PRIMARILY PIPE APPLICATIONS
American Welding Society