NDT Topics & Decision Guides
Cross-cutting guides that tie the method pages, head-to-head comparisons, calculators and standards together — start here when the question is "which method", "what detects this defect", or "which code applies".
A practical decision guide to selecting the right NDT method — UT, PAUT, RT, MT, PT, ET, TOFD or VT — by defect type, material, access, code and cost. Side-by-side comparisons and a free method selector.
Read guideA plain-English map of the NDT codes and standards that actually govern inspection — ASME Section V, API 510/570/653, API 1104, API 579/580/581 RBI, AWS D1.1 — and when each applies.
Read guideThe common weld defects — porosity, slag, lack of fusion, incomplete penetration, cracks, undercut — and which NDT method reliably detects each. Mapped to AWS D1.1 and ASME acceptance.
Read guide