NDT Inspection Procedure: Complete Step-by-Step Guide for Inspectors

An NDT inspection procedure is a controlled sequence of instructions used to perform a non-destructive examination on a particular material, component, weld or structure.

The procedure normally defines important requirements such as:

Applicable NDT method
Material or component to be examined
Examination area
Examination extent
Equipment requirements
Calibration or verification requirements
Surface preparation
Examination technique
Sensitivity requirements
Evaluation method
Acceptance criteria
Recording requirements
Reporting requirements
The exact requirements depend on the NDT method, component, project specification, applicable code or standard and examination purpose.