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19.2 Non-destructive testing
Non-destructive testing (NDT) is the testing of materials to detect internal, surface and concealed defects or discontinuities, using methods which do not damage or destroy the material under test. NDT of specific mobile crane components is to take place at set intervals (e.g. 10-year major inspection).
All NDT must be carried out by a competent person who has been accredited by NATA. The results of NDT must be available at the crane yard.
When using NDT for the detection of cracks in metals, the paint must be removed from the metal surface.
Last updated June 9, 2006
