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This document specifies how a welding procedure can be qualified by using tested welding consumable data. It expands on the requirements given in ISO 15607. In addition, it gives the range of qualification. Application of this document is limited to parent material groups 1.1, 8.1, 21, 22.1 and 22.2 in accordance with ISO/TR 15608, which produce acceptable microstructures and properties in the heat-affected zone which do not deteriorate significantly in service. This document is limited to: —   parent material thicknesses t ≤ 40 mm (groups 1.1 and 8.1) and t ≤ 20 mm (groups 21, 22.1 and 22.2); —   fillet welds with throat thickness a ≥ 1 mm. This document is not applicable when any of the following is specified for the welded joint: a)     hardness; b)     impact properties; c)      preheating; d)     controlled heat input; e)     interpass temperature; f)      post-weld heat treatment. The use of this document can also be restricted by an application standard, specification or other documents.