AWS B2.1.1.234 : 2006
AWS B2.1.1.234 : 2006
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR ARGON PLUS 25% CARBON DIOXIDE SHIELDED FLUX CORED ARC WELDING OF CARBON STEEL (M-1/P-1/S-1, GROUPS 1 AND 2), 1/8 THROUGH 1-1/2 INCH THICK, E7XT-X, AS-WELDED OR PWHT CONDITION, PRIMARILY PIPE APPLICATIONS
American Welding Society