Welding using manual, automatic or semi-automatic processes. Welding consumables, preparation for welding, butt joints, branches, attachments, flanges, testing and inspection, acceptance requirements for optional non-destructive testing, procedure and welder approval tests.Cross References:BS 638BS 1387BS 1560:Part 3:Section 3.1 BS 1640:Part 3BS 1821BS 1965:Part 1BS 2633BS 2640BS 2910BS 3059:Part 1BS 3059:Part 2BS 3601BS 3602:Part 1BS 3602:Part 2BS 3603BS 3606BS 3799BS 3923:Part 1BS 4204BS 4504:Part 1BS 4677 BS 4870:Part 1BS 4871:Part 1BS 4872:Part 1 BS 5289BS 6084BS 6693:Part 2BS 7084 BS EN 287-1BS EN 288-1BS EN 288-2BS EN 288-3BS EN 439BS EN 499BS EN 756BS EN 760BS EN 50078BS EN 60974-11BS EN 60974-12BS EN ISO 9000ASTM A 106ASTM A 333 DIN 17173DIN 17174DIN 17175DIN 17177