This part of ISO 15792 specifies the preparation of test piece and specimens. The purpose is to determine mechanical properties of all-weld metal where required by the consumable classification standard or for other purposes, in arc welding of steel, nickel and nickel alloys. This standard is not applicable to single- or two-pass welding or fillet welding. For these cases, EN ISO 15792-2 and EN ISO 15792-3 apply.