August 15, 2019
Standard Welding Procedure Specification (SWPS) for CO2: Shielded Lux Cored Arc Welding of Carbon Steel (M-1/P-1/S-1. Group 1 or 2), 1/8 through 1-1/2 inch Thick, E70T-1 and E71T-1, As Welded Condition
standard by American Welding Society, 04/10/2018