AWS B2.1-1-206:1996 (R2007)
Standard WPS for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1 1/2" Thick, E6010 (Vertical Downhill), Followed by E7018 (Vertical Uphill) As-Welded or PWHT Condition, Primarily Pipe Applications
standard by American Welding Society, 05/28/1996