BS EN 16169:2012
Current
The latest, up-to-date edition.
Sludge, treated biowaste and soil. Determination of Kjeldahl nitrogen
Hardcopy , PDF
English
30-09-2012
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences and sources of errors
6 Reagents
7 Apparatus
8 Sample storage and sample pretreatment
9 Procedure
10 Calculation
11 Expression of results
12 Precision
13 Test report
Annex A (informative) - Repeatability and
reproducibility data
Bibliography
Defines the determination of Kjeldahl nitrogen according to the Kjeldahl procedure in sludge, treated biowaste and soil.
| Committee |
EH/4
|
| DevelopmentNote |
Supersedes 10/30147469 DC. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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).
| Standards | Relationship |
| EN 16169:2012 | Identical |
| ISO 5663:1984 | Water quality — Determination of Kjeldahl nitrogen — Method after mineralization with selenium |
| EN 13342:2000 | Characterisation of sludges - Determination of Kjeldahl nitrogen |
| EN ISO 11732:2005 | Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005) |
| EN 25663:1993 | Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium (ISO 5663:1984) |
| ISO 11464:2006 | Soil quality Pretreatment of samples for physico-chemical analysis |
| ISO 11732:2005 | Water quality — Determination of ammonium nitrogen — Method by flow analysis (CFA and FIA) and spectrometric detection |
| EN 13654-1:2001 | Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method |
| ISO 5667-15:2009 | Water quality — Sampling — Part 15: Guidance on the preservation and handling of sludge and sediment samples |
| ISO 11261:1995 | Soil quality — Determination of total nitrogen — Modified Kjeldahl method |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |
| EN 15002:2015 | Characterization of waste - Preparation of test portions from the laboratory sample |
| EN ISO 5667-15:2009 | Water quality - Sampling - Part 15: Guidance on the preservation and handling of sludge and sediment samples (ISO 5667-15:2009) |
| EN 15934:2012 | Sludge, treated biowaste, soil and waste - Calculation of dry matter fraction after determination of dry residue or water content |
| EN 16179:2012 | Sludge, treated biowaste and soil - Guidance for sample pretreatment |
| ISO 18512:2007 | Soil quality Guidance on long and short term storage of soil samples |
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