Confirmation of the compatibility of the material to be welded and the welding filling materials to be used with each other as a result of the tests required by the standards is called “Welding Method Test Approval”.

The commonly used term PQR is an abbreviation of the term “Procedure Qualification Record”. Welding method test is supervised according to the standards and WPS you will determine. Non-destructive and destructive tests are done in accredited laboratories.