scope:

This document specifies a method for the determination of the sludge (bulk) density. The procedure to determine density of the liquid and of the solid fractions of a suspension is described in Annex C.

This document is applicable to sludge suspensions from:

- storm water handling;

- urban wastewater collecting systems;

- urban wastewater treatment plants;

- treating industrial wastewater similar to urban wastewater [7];

- water supply treatment plants.

This method is also applicable to sludge suspensions from other origin, provided the necessary verifications are done.