EVS-EN 16720-1:2016

This part of the European Standard specifies a method for determining the flowability, as defined in CEN/TR 15463, of sludge by means of the extrusion tube apparatus.
This part of this European Standard is applicable to sludge and sludge suspensions from:
—  storm water handling;
—  urban wastewater collecting systems;
—  urban wastewater treatment plants;
—  plants treating industrial wastewater similar to urban wastewater (as defined in Directive 91/271/EEC);
—  water supply treatment plants.
This method is also applicable to sludge and sludge suspensions of other origins.