50.An approved welding or brazing method remains valid for as long as one of its essential variants as determined in the Welding and Brazing Qualifications Code has not been changed (ASME-1995, Section IX).
(Replaced as regards the personal qualification of welder).
O.C. 2519-82, s. 50; O.C. 1310-91, s. 19; O.C. 1678-94, s. 6; O.C. 977-96, s. 8; O.C. 280-2006, s. 49.