NEN NPR 6554 : 1981
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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WATER - EXPLANATORY COMMENTS ON THE EXAMINATION BY MEANS OF MEMBRANE FILTRATION FOR THE PRESENCE OF COLIFORM BACTERIA ACCORDING TO NEN 6552, NEN 6553, NEN 6570 AND NEN 6571
23-08-2011
12-01-2013
Treats a number of subjects as explanatory comments on the examination by means of membrane filtration for the presence in surface water and drinking water of coliform bacteria and thermotolerant coliform in accordance with NEN 6552, NEN 6553, NEN 6570 and NEN 6571.
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