How to choose NDT accessories and consumables
By Grant, Inspection Tool Specialists. Reviewed November 2026.
Three things decide which NDT accessories you need: the method you use, the reference blocks and consumables your procedure requires, and the materials you test. Answer those first. An NDT method is only as reliable as the reference and consumables it is set up with.
Accessories by method
| Method | Accessories | Typical in our range |
|---|---|---|
| Ultrasonic | Probes, cables, couplant and calibration blocks | Angle beam probe (shear wave); straight beam probe; probe cable set; ultrasonic coupling gel |
| Ultrasonic calibration | Step, thin-wall, V1 and V2 blocks | 5-step thickness blocks; thin-wall blocks; V2 block |
| Magnetic particle | Reference block, flux indicator and lifting force test block | MPI reference test block; flux indicator strips; 4.5 kg lifting force test block |
| Eddy current | Calibration block set | Eddy current calibration block set |
| Hardness | Shore test blocks | Shore A test blocks; Shore D test blocks |
| Weld purging, to protect the root | Inflatable purge systems | PurgElite purge system; QuickPurge system |
| Method verification | Flawed specimens kit | NDT standard flawed specimens kit |
Keep the block and the method together
Calibration blocks and reference standards must match the material, geometry and method in your procedure. Store them clean and protected, check them for damage before use, and record which block was used for each check.
Price guide
As a guide to our current range, including VAT: probes and cables from about R1,250 to R3,600; couplants from about R1,600; calibration and test blocks from about R2,600 to R25,200; purge systems from about R10,600 to R35,800; flawed specimens kit about R28,600. Prices change, so check the product pages and confirm the blocks and probes each quote includes.
Questions we will ask you
Tell us the NDT method, the material and the geometry you test, the reference blocks and consumables your procedure requires, the standard you follow, and the records you must keep. With that we can recommend accessories and provide pricing.