17.6.1
Welding shall be in accordance with IS 816, IS 819, IS 1024, IS 1261, IS 1323 and IS 9595, as appropriate.
17.6.2
For welding of any particular type of joint, welders shall give evidence acceptable to the purchaser of having satisfactorily completed appropriate tests as prescribed in IS 817, IS 1393, IS 7307 (Part 1), IS 7310 (Part 1) and IS 7318 (Part 1), as relevant.
17.6.3
Assembly and welding shall be carried out in such a way to minimize distortion and residual stress
and that the final dimensions are within appropriate tolerances.