Welders N.V. has, since 1989, been operating a Q.A. System meeting ISO 9001 requirements. It is certified to ISO 9001 by Lloyd’s Register Q.A. under certificate no. 941998, originally issued in 1994. Further, Welders N.V. is allowed to use the ASME “U” stamp and the Manufacturer License of Special Equipment (Pressure Vessels Category A2), for the People's Republic of China, License no. TS2200923-2010.

Welders is equipped to carry-out a comprehensive range of N.D.E., including Radiographic Examination, Helium Testing, Ultra Sonic Testing, Magnetic Particle Examination, Positive Material Identification and Acoustic Emission.

Welders equipment is certified by Internationally Reputed Third Party Inspection Agencies, among which :

• Lloyds Register of Shipping (U.K.)
• T.U.V., Germanischer Lloyd (Germany)
• Apave, Bureau Veritas, DRIRE (France)
• Stoomwezen (The Netherlands) 
• D.N.V. (Norway)
• AIB Vinçotte, Apragaz (Belgium)
• ABS (USA)