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БДС EN 16169:2012

Sludge, treated biowaste and soil - Determination of Kjeldahl nitrogen

Nov 20, 2012

General information

90.93     Sep 18, 2018



European Standard

13.030.01     13.080.10  




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This European Standard specifies the determination of Kjeldahl nitrogen according to the Kjeldahl procedure in sludge, treated biowaste and soil.
Nitrate and nitrite are not included.
Compounds with nitrogen bound in N-N, N-O linkages and some heterocycles (pyridines) are only partially determined.
The limit of detection (LOD) is usually 0,03 % nitrogen, and the limit of quantification (LOQ) is 0,1 % nitrogen (using 0,25 mol/l sulfuric acid for titration).

Directives and Regulations

When the standard is harmonized under a directive or regulation, the word Harmonized appear. When such an inscription does not appear, it means that the standard is related to / supporting the relevant directive or regulation.


Protection of the environment, and in particular of the soil, when sewage sludge is used in agriculture

Life cycle


БДС EN 16169:2012
90.93 Standard confirmed
Sep 18, 2018

Related project

Adopted from EN 16169:2012