NEN 6552-1981 Bacteriological examination of drinking water — Examination by means of membrane filtration for the presence of thermotolerant coliform bacteria
The method is applicable to the bacteriological examination of drinking water.
NEN 6552-1981 history
1981NEN 6552-1981 Bacteriological examination of drinking water — Examination by means of membrane filtration for the presence of thermotolerant coliform bacteria