ISO and Marks

WISA is certified based on NEN and ISO-9001:2015. This international quality mark underlines the complete control over the continuing improvement process of our entire organisation. And the periodical check-up by the renowned institute KIWA guarantees this quality level in the future. An important part of our products are manufactured with the following product certificates. Specific information about this is available on request.

ISO
10 jaar
25 jaar
400 KG
KIWA
KOMO
CE
DIN
DVGW
GS
NF
UPC
Belgaqua
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