Visual Testing (VT) is one of the fundamental non-destructive testing (NDT) methods, used both as a standalone inspection technique and as a preliminary step for further volumetric examinations. It involves the direct observation of a component’s surface to detect discontinuities visible to the unaided eye or with the aid of precision optical tools (such as video endoscopes). Inspections can be performed throughout the asset lifecycle—during production, final acceptance, operation, and post- repair.
Typical applications include the assessment of welded joint surfaces, detection of cracks, corrosion, and erosion damage, as well as verification of geometric compliance and component completeness. Our VT inspections are conducted in accordance with applicable standards and acceptance criteria based on the technical documentation of the inspected assets (e.g., ISO 17637, ASME).
For structures with limited access, we perform indirect visual inspections using tools such as mirror sets, borescopes, telescopic mirrors, and video endoscopes (VTe). Video borescopy allows for remote inspection of internal surfaces in complex-geometry components—such as pipelines, heat exchangers, valves, pressure chambers, or machinery parts.
The captured footage can be displayed in real-time and recorded as high-resolution digital documentation. This enables detailed surface analysis and archiving for future comparison or reporting purposes.
VT is effective for evaluating: welds (profile, face, excess weld material, spatter, porosity), surfaces of pipelines and tanks, repaired or refurbished components, seals, covers, assembly joints, and technological installations. BalticTest inspectors hold the required qualifications and are fully certified to perform VT in accordance with ISO 9712 and relevant industry standards. Inspections can be conducted on-site or in workshop conditions, and documentation includes descriptions of discontinuities, photographs, and—for remote inspections—video recordings.