This European Standard specifies a method for the determination of drainability of flocculated sludges. It is applicable to sludge and sludge suspensions from:
a) storm water handling;
b) urban wastewater collecting systems;
c) urban wastewater treatment plants;
d) treating industrial wastewater similar to urban wastewater (as defined in Directive 91/271/EEC);
e) water supply treatment plants.
This method is also applicable to sludge suspensions from other origin