90.60 Close of review Sep 2, 2025
CEN
CEN/TC 308 Characterization and management of sludge
European Norm
13.030.20 Liquid wastes. Sludge
Published
This European Standard specifies a procedure for complete digestion of raw/digested sludge, suitable for the subsequent determination of phosphorus.
Phosphorus in environmental samples can be present in many forms. This method of pre-treatment enables the analyst to determine all forms - i.e. total phosphorus, by quantitative oxidation yielding an aqueous solution of orthophosphate which should be analysed for phosphate according to method EN ISO 6878, EN ISO 10304-2 or an equivalent validated method.
The range of the method is up to 50 g/kg P assuming appropriate dilution of the digest in the final measurement step.
Legislation related to this standard
Protection of the environment, and in particular of the soil, when sewage sludge is used in agriculture
PUBLISHED
EN 14672:2005
90.60
Close of review
Sep 2, 2025
