Visual Testing (VT)

Visual Testing (VT) is the most fundamental and widely applied non-destructive testing method. It is the first line of inspection for assessing the condition of welds, structures, and components, and is a prerequisite or complement to all other NDT methods.

QMS Asset Integrity provides NATA-accredited visual testing services covering a comprehensive range of products: castings, forgings, rolled products, and welded joints. We are accredited for visual inspection both during the service life of assets and prior to initial service - ensuring complete lifecycle coverage.

Our inspectors are experienced in marine classification requirements, structural steel assessment, pressure equipment inspection, and fabrication quality verification across the oil and gas, defence, marine, mining and manufacturing sectors.

Visual testing involves systematic examination of components using the unaided eye (direct VT) or optical aids such as magnifying lenses, borescopes, mirrors, and cameras (remote VT). Surface condition, weld profile, dimensional conformity, and visible defects such as cracks, porosity, undercut, misalignment and corrosion damage are assessed against applicable code or specification requirements.

Adequate lighting (minimum 500 lux for general VT, 1000 lux for detailed examination) and access are essential. All findings are documented with photographic evidence where appropriate.