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This document specifies the requirements for qualification testing of welders for fusion welding of steels, aluminium, copper, nickel, titanium and zirconium.

In this document, the terms "aluminium", “copper”, “nickel”, “titanium” and “zirconium” refer to the materials and their alloys.

This document provides a set of technical rules for a systematic qualification test of the welder and enables such qualifications to be uniformly accepted independently of product type, location and examiner or examining body.

When qualifying welders, the emphasis is placed on the welder's ability to manually manipulate the electrode, welding torch, welding blowpipe, or laser gun, with or without filler material, to produce a weld of acceptable quality.

The fusion welding processes referred to in this document include welding processes which are designated as manual or partly mechanized.

This document does not cover fully mechanized and automated welding processes which are covered by ISO 14732.

The principles of this document can be applied to other fusion welding processes.