Visual testing
Visual testing is used to assure assembly and welding quality during
construction / manufacture and during in-service inspections of the equipment.
Visual testing (VT) used to be applied to all welded joints regardless other
testing methods.
Defects determined by means of VT:
- surface cracks;
- surface pores and porosity;
- undercuts;
- irregular geometries, etc.
Testing standards used for VT: LST EN 13018+A1:2005, LST EN 970:2004,
PNAE G-7-016-79, GOST 23479-79, RD 34.10.130-96.
Certified personnel: 2 VT level 2 inspectors certified according to LST EN 473. |
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