- NEN-EN 287-1
- ISO 9606 series
- ASME IX
Certification is based on the international standard EN-ISO 3834 and has two variations:
- International Welding Coördinator: relevant for all industry sectors where quality of the welding process and welds must be ensured.
- Welding Coordinator for non-static stressed constructions: less generic than the International Welding Coordinator and specifically relevant within companies producing steel constructions.
Visual Welding Inspector
The certification of the visual Welding Inspector, also referred to as the Visual Tester, is based on the international standard NEN-ISO 9712 and EN 473. The certified Visual Welding Inspector is competent to perform visual inspection (non-destructive) on connection based on melted welts according to defined procedures (standards) and work instructions (WPS).
DNV GL offers two certification levels for the visual welding inspector:
- VTW-1: This visual welding inspector working under the supervision of the certified visual welding inspector level 2.
- VTW-2: This visual welding inspector working independently and providing the required reports.