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Positive Material Identification (PMI)
ME & MA Positive Material Identification (PMI) 1.0 INTRODUCTION Positive Material Identification (PMI) is one of the more specialized nondestructive…
NDT News
126 technical articles and industry updates
Method guides, certification routes, salary surveys, codes and standards explained, and news from the inspection industry.
955 discussions · 371 answers
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193 calculations with worked examples
NDT calculators
FreeUTNear field length, circular probeNear-field (Fresnel zone) length N = D²f/4c for a circular single-crystal probe, with the wavelength it…Open calculator- FreeUTAngle beam sound path, surface distance and depthSolves the first-leg angle-beam triangle — sound path, surface distance and depth — from any one of the…Open calculator
- FreeTOFDToFD depth from time of flightConverts a measured ToFD arrival time into the depth of the diffracting tip below the scanning surface.Open calculator
- FreePAUTMaximum PAUT scan speedHighest encoded scan speed that still records every acquisition point, from the frame rate and the scan…Open calculator
- FreeRTSource decayCalculates the present activity of a gamma radiography source from its assay activity and the elapsed…Open calculator
- FreeMTCoil shot current, low fill factorAmpere-turns and coil current for longitudinal magnetisation in a low fill factor coil - part against…Open calculator
- FreePTPenetrant dwell timeMinimum penetrant and developer dwell times from ASME V Table T-672 by material and product form, with…Open calculator
- FreeETStandard depth of penetrationEddy current standard depth of penetration (skin depth) from resistivity, relative permeability and…Open calculator
- FreeOther methodsLeak rate unit converterConverts a leak rate between mbar·L/s, Pa·m³/s, atm·cc/s, Torr·L/s, sccm and scfh so acceptance…Open calculator
- FreeOther methodsNDT unit converter hubOne-stop conversions for the units NDT actually uses: length and thickness, pressure, temperature…Open calculator