BS 4871-3 85th Edition, March 29, 1985
Approval Testing of Welders Working to Approved Welding Procedures- Part 3: Arc Welding of Tube to Tube-Plate Joints in Metallic Materials
Includes all amendments and changes through Reaffirmation Notice , December 1, 2011
Published By:British Standards Institution (BSI)
Information to the welder, items to be recorded in test, changes not affecting approval, extent of approval, types of test joint, examination and testing, statement of results, re-approval, recommended approval test certificate.