Visual Testing
The first and most important inspection method: surface condition, workmanship and weld profile, direct or remote.
Method guide
Inspection methods
Inspection and testing methods
Every method answers a specific question and has blind spots. Choosing and specifying the right method is half of a reliable inspection.
What we perform, witness and coordinate
Each method page explains the principle, typical applications, what the method detects, its limitations and how to specify it. The QUALITAS TR role is stated clearly: some methods are performed by our engineers during inspections, others are performed by certified operators or laboratories and witnessed or reviewed by us.
Nothing on these pages replaces the method standards or the acceptance criteria in your specification. They are written to help buyers and engineers ask the right questions.
01Non-destructive testing
Surface and volumetric methods for welds, castings and forgings.
Ultrasonic Testing
Volumetric NDT with high frequency sound: weld flaws, laminations, internal forging defects, thickness.
Method guide
Radiographic Testing
X-ray and gamma ray imaging of internal flaws in welds and castings, with a permanent record.
Method guide
Magnetic Particle Testing
Surface and near surface crack detection in ferromagnetic materials using magnetic fields and particles.
Method guide
Liquid Penetrant Testing
Detection of surface breaking flaws in any non-porous material using penetrant and developer.
Method guide
02Measurement
Dimensional, geometrical and surface measurements.
Dimensional Measurement
Hand instruments, gauges and fixtures for size, form and position, chosen for the tolerance.
Method guide
CMM and 3D Measurement
Coordinate measuring machines, laser trackers and scanning for complex geometry and GD&T.
Method guide
Thickness, Ferrite and Surface Roughness
Ultrasonic wall thickness, ferrite content in stainless welds and surface roughness measurement.
Method guide
Coating Thickness and Coating Inspection
DFT, WFT, surface preparation grade, adhesion and galvanizing thickness measurement.
Method guide
03Material and mechanical testing
Identity and properties of materials.
Positive Material Identification
XRF and OES alloy verification to prevent material mix-ups in critical components.
Method guide
Hardness Testing
Brinell, Rockwell, Vickers and portable hardness testing to verify heat treatment and material condition.
Method guide
Mechanical Testing
Tensile, impact, bend and fracture tests that verify material and weld properties.
Method guide
04Functional and integrity testing
Proving function, tightness and protection.
Functional and Performance Testing
Proving that equipment works: sequences, interlocks, capacity, efficiency, vibration and noise.
Method guide
Pressure and Leak Testing
Hydrostatic, pneumatic and leak tests that prove strength and tightness of pressure equipment.
Method guide
Packaging and Preservation Inspection
Export packaging, preservation, marking and container checks that protect goods in transit.
Method guide