Which documents specify the welding procedure to be used and confirm its qualification?

• A. WPS and PQR
• B. Safety plan and toolbox talk notes
• C. Material safety data sheets
• D. Insurance certificates

Answer: (A)

Welding quality comes from using a defined, proven way to weld. The document that specifies the exact welding procedure to be used is the Welding Procedure Specification, which lays out the process, base and filler metals, joint design, preheat and interpass temperatures, and the specific welding parameters to follow. To prove that this procedure works and is acceptable for production, you have the Procedure Qualification Record, which contains the test results that demonstrate the welds meet the required standards. Together, these two documents establish both the method and its validated performance.

Other documents listed don’t address how welding is performed or proven capable. Safety plans and toolbox talks cover safety practices, Material Safety Data Sheets deal with material hazards, and insurance certificates relate to coverage—none of these specify or verify welding procedures.