AWS B2.1-1-208:1996 (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, E7018, As-Welded or PWHT Condition, Primarily Pipe Applications
standard by American Welding Society, 05/28/1996

AWS A4.2-97

Standard Procedures for Calibrating Magnetic Instruments to Measure the Delta Ferrite Content of Austenitic and Duplex Austenitic-Ferritic Stainless Steel Weld Metal
standard by American Welding Society, 11/06/1997