By Ken Fields, CET, CWI

Understanding welding procedure specifications (WPS) and procedure qualification records (PQR) is not a complicated task when one understands what they are, the different nomenclatures of a WPS, and how they are developed and support each other and the welding process.

However, before exploring the different nomenclatures of WPS and learning how they work together, let’s define WPS and PQR so we can understand why they are important to get right at the beginning of a project to streamline your next welding inspection.