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

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 B2.1-1/8-014:2002 (R2013)

Standard Welding Procedure Specification (Swps) for Shielded Metal Arc Welding of Carbon Steel to Austenitic Stainless Steel (M-1 to M-8/P-8/S-8, Group 1), 10 through 18 Gauge, in the As-Welded Condition, with or without Backing
standard by American Welding Society,