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Piping Walkdown Checklist

A piping walkdown checklist is used in industrial construction to verify that piping systems are built and installed correctly.

The piping walkdown checklist involves physically inspecting the piping system on-site to ensure all components, connections, and configurations align with the approved piping and instrumentation diagrams (P&IDs), isometric drawings, and project specifications.

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ASME B31.3 Examiner Certification

ASME B31.3, paragraph 342.1, specifies the requirements for examiner qualification and certification. Examiners must be certified through the employer's written practice, a quality procedure aligned with standards such as ASME, ASNT, or other recognized national or international certification programs. To achieve certification, examiners must complete the required training and demonstrate sufficient experience before passing a qualifying examination for the specific nondestructive examination (NDE) method. Once certified, examiners are authorized to perform NDE in accordance with ASME B31.3 Code requirements.