On Friday 14 December 2012, J.G. (Koos) Mast MSc., Knight in the Order of Orange-Nassau, passed away just a few days after his 70th birthday.
Koos was a very active and engaged person within both REHVA and our Dutch member association TVVL. He was President of the Dutch Society for Building Services (1997-2004). Subsequently he was TVVL's delegate to REHVA for many years. He was an Honorary Fellow of our federation, Chair of the REHVA Region One Group (2007-2011). He always expressed a strong positive influence on others, especially the youngsters in his environment. Koos was a real European in that respect, he was a sincere believer in developing communication between professional (HVAC) engineers all over Europe, he was especially proud of being elected a corresponding member of VDI, the German Engineering Institute. He was one of the founders of the ‘REHVA Dictionary, our glossary in 15 languages with over 12,000 terms. Koos was President of TVVL's organizing committee for the “REHVA Annual Meeting 2009, Amsterdam”. He was awarded honorary fellowships of TVVL and REHVA. His consultancy firm, Smits van Burgst - The Netherlands, was REHVA’s first Dutch supporter.
We all wish Lies Mast and her family the strength to overcome their great loss. Koos will be sadly missed by all his friends in TVVL and the whole REHVA community. He was a real gentleman, a true friend and a real family-man, in every respect.