33
3.3
TEST MARKS
The backwashing filters conform to the technical regulations for drinking water installations in accordance
with DIN EN 806 ff. and the national annex DIN 1988 ff. and DIN EN 1717. They are tested by the DVGW
(Deutsche Vereinigung des Gas- und Wasserfaches e.V. — technical-scientific association for the gas and
water industries) in accordance with the requirements of DIN EN 13443-1 and DIN 19628 for mechanical
filters in drinking water installations, and are therefore entitled to bear the DIN-DVGW mark.
NW-9301CN0106
Fig. 2: DIN-DVGW mark
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