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Radiography Testing
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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
Latest forum discussions
Failure MechanismsAmine crackingkenton · 1 reply · 15 hours agoAmine cracking can occur in carbon steel pipelines, which are commonly used in the oil and gas industry. The…Read discussion
NDTRegarding NDT Level IIIRahul Jeganathan · 1 reply · 15 hours agoI am planning to pursue NDT Level 3.I have 8 Years of experience in NDT & Project Handling, I hold PCN…Read discussion
Acoustic EmissionAcoustic Emission testing instrumentsleo · 2 replies · 17 hours agoWe are searching for a Acoustic emission testing equipment manufacturer for a project in Sri Lanka. Please…Read discussion
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Quality ControlVietnam Supplier Quality: Control the Process, Not Only the Final ShipmentyVIS_Global_82756 · 0 replies · 16 days agoVietnam Supplier Quality: Control the Process, Not Only the Final ShipmentBy VIS Global Editorial…Read discussion
Chemical SectorLooking for Quality Cocamide DEA (CDEA) as a Foam Booster & Thickener?HooChemtec · 0 replies · 6 months agoHello everyone, I’d like to introduce Cocamide DEA (CDEA), a versatile surfactant widely used in personal…Read discussion- Chemical SectorSeeking Advice on Cooling Water Treatment ProgramsHooChemtec · 0 replies · 6 months agoHi everyone, I'm looking for practical advice on industrial cooling water treatment. We run an open…Read discussion
Radiographysensitivity calculation in RTwilliam · 3 replies · 7 months agoDear Experts, we have a radiography film of 2 inch 5.54 mm thickness weld, technique is DWDI. Now for…Read discussion
Digital RadiographyNeed for RT2 inspector in DRyassine-ab · 1 reply · 8 months agoHello community,I am from SGS Morocco, in charge of NDT aero development.I have an urgent need of Cofrend…Read discussion
Automated Pipeline InspectionAUT Pipelinesanjibhutaitgmail-com · 0 replies · 12 months agoAUT discussion about Pipeline inspectionRead discussion
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