Most important topics
European Federation for Welding, Joining and Cutting (EWF)
- Member (President 2014-2016)
- EWF Assessor (2001 – 2009); EWF Lead Assessor (2009 – 2021)
- Member IIW Commission XIV: “Education and Training”
- Member IIW Commission XVIII: “Quality Management in Welding and Allied Processes”
- Member IIW WG-STAND
IIW – IAB the International Authorisation Board of the International Institute of Welding
- Member IAB Group A: “Education and Training” (Chairman 2011-2020)
- Member IAB Group B: “Authorisation and Qualification”
- IIW Assessor (2001 – 2009); IIW Lead Assessor (2009-2021)
- Member and past Chairman of the Dutch Standards Committee 341 008 “Welding”
Comité Européenne de Normalisation (CEN)
- Member of CEN (Comité Européenne de Normalisation): TC 121, Welding
International Standards Organisation (ISO)
- Member ISO/TC 44/SC 10 and SC 11
- Past chairman of ISO/TC 44/SC 11/WG2 (update of the EN-ISO 14731)
Independent Welding Consultants Register (IWCR)
- Secretary of the Association IWCR
- Knight in the Royal Order of Oranje Nassau.
- Holder of the “Professor Jaeger medal” of the Netherlands Insitute of Welding.
- Honorary member (past secretary) of the “Lastechnische Discussiegroep Rotterdam, LDR” (Welding Discussion group Rotterdam).
- Honorary member (past chairman and past secretary) of the Association “KINT” (Dutch Association for Quality, Inspection and Non-destructive Techniques).