scope:

This standard applies to welding processes where the skill of the diver-welder or welding operator has a significant influence on weld quality. This standard specifies essential requirements, ranges of approval, test conditions, acceptance requirements and certification for the approval testing of diver-welder or welding operator performance for the welding of steels underwater in a hyperbaric dry environment. The recommended format for the certificate of approval testing is given in Annex A. During the approval test the diver-welder or welding operator should be required to show adequate practical experience and job knowledge (test non mandatory) of the welding processes, materials and safety requirements for which he is to be approved, information on these aspects is given in Annex B. This standard is applicable when the diver-welder s or welding operator s approval testing is required by the purchaser, by inspection authorities or by other organisations. The welding processes referred to in this standard include fusion welding processes which are designated as manual or partly mechanized welding for diver-welders and fully mechanized or automatic welding for operators (see 5.2). All new approvals are in accordance with this standard from the date of this issue.