Visual Testing (VT)

Visual Testing — image gallery

Why choose us?

We deliver on our promises – when we say we’ll do something, we do it!
Flexible service with quick turnaround times
Independent and impartial testing
Successful track record of delivering NDT services to various industries including large-scale industrial projects for global clients
Highly trained and certified, multi-disciplined specialists
Modern and always well-calibrated equipment
Testing performed according to the written procedures approved by a level III NDT engineer
Quality of service verified and confirmed by the approvals of the independent certification bodies
Always ready to answer questions on testing and quality assurance

Service Information

Testing Method Description

Visual Testing (VT)

Visual inspection is by far the most common non-destructive testing (NDT) technique and is the basis for all NDT inspection programs. When attempting to determine the soundness of any part or specimen for its intended application, visual inspection is normally the first step in the examination process. Generally, almost any specimen can be visually examined to determine the accuracy of its fabrication.

LBNiW uses the Visual Inspection process on structures, mechanical components, welds, piping, storage tanks, pressure vessels and other hardware. Visual Testing visually checks areas to verify that they meet the applicable code or standard. Inspection may include magnification, remote optical viewing devices, and additional measurement tools.

Relevant Standards

Relevant Codes & Standards

Application Specific Standards

EN 12952-6, Water-tube boilers and auxiliary installations Inspection during construction; documentation and marking of pressure parts of the boiler
EN 12953-5, Shell boilers. Inspection during construction, documentation and marking of pressure parts of the boiler
EN 13480-5, Metallic industrial piping Inspection and testing
EN 13445-5, Unfired pressure vessels Inspection and testing
EN 12732, Gas infrastructure. Welding steel pipework. Functional requirements
EN 14015, Specification for the design and manufacture of site built, vertical, cylindrical, flat-bottomed, above ground, welded, steel tanks for the storage of liquids at ambient temperature and above
EN 1090-2, Execution of steel structures and aluminium structures Technical requirements for steel structures
EN 14197-2, Cryogenic vessels. Static non-vacuum insulated vessels Design, fabrication, inspection and testing
EN 13458-2, Cryogenic vessels. Static vacuum insulated vessels Design, fabrication, inspection and testing
EN-ISO 9606-1, Qualification testing of welders. Fusion welding Steels
EN-ISO 9606-2, Qualification test of welders. Fusion welding Aluminium and aluminium alloys
EN ISO 15614-1 Specification and qualification of welding procedures for metallic materials. Welding procedure test. Arc and gas welding of steels and arc welding of nickel and nickel alloys
EN-ISO 17635, Non-destructive testing of welds. General rules for metallic materials

Standards Specific to Visual Examination

EN 13018, Non-destructive testing. Visual testing. General principles
EN-ISO 17637, Non-destructive testing of welds. Visual testing of fusion-welded joints
EN ISO 5817, Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections
EN 13927, Non-destructive testing. Visual testing. Equipment
EN 1330-10, Non-destructive testing. Terminology Terms used in visual testing
ISO 11971, Steel and iron castings. Visual examination of surface quality
ASME Boiler and Pressure Vessel Code Section V Article 9 – Visual Examination.