DIN EN 14742:2012-03

The assessment in laboratory of sludge amenability to several treatments, dewaterability in particular, is sensitive to the operating procedure adopted for the chemical conditioning step, as it depends on a lot of conditions, including shearing degree, mixing time, apparatus size, etc.The proposed standard is aimed to define a standardised procedure for the conditioning operation when selecting type and dosage of a conditioning product at laboratory scale. This standard would allow results obtained at different places and on different times to be compared. A Technical Report on this subject has been already published in 2006 (CEN/TR 14742); it will be the basis for the development of this new Standard.