AWS D10.9-80
[ Withdrawn ]
Specification for Qualification of Welding Procedures and Welders for Piping and Tubing
standard by American Welding Society, 10/06/1980
AWS F6.1-78
[ Withdrawn ]
Method for Sound Level Measurement of Manual Arc Welding and Cutting Processes
standard by American Welding Society, 07/24/1978