It is the process of evaluating and certifying the test pieces according to the non-destructive and destructive test results, after the welders are subjected to an examination according to the relevant standards.

Employees in welded manufacturing are certified according to the following International standards;

EN 9606-1: Welder Certification for Fusion Welding of Steels

EN 9606-2: Aluminum Welder Certification

EN 9606-3: Copper Welder Certification

EN 14732: Certification of Weld Operators and Resistance Weld Adjusters for Fully Mechanized and Automatic Fusion Welding of Metallic Materials

ASME SEC IX: Pressure Vessel Welder and Welding Operator certification with verification method under ANSI/ASME SEC IX

API 1104: Pipeline Welder certification with verification method under API 1104

AWS D1.1: Steel Structure Welder/Welding Operator certification procedure with verification method under ANSI/AWS D1.1

EN 13585: Brazer Certification

EN ISO 15618-1 and AWS D3.6: Underwater Welder Certification