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Norm
ÖNORM EN 13654-1
Issue date: 2002 01 01
Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
This European Standard specifies a method for the determination of nitrogen in soil improvers and
growing media. The Kjeldahl method determines ammonium-N, nitrate-N, ni...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 10 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This European Standard specifies a method for the determination of nitrogen in soil improvers and
growing media. The Kjeldahl method determines ammonium-N, nitrate-N, nitrite-N and organic N
content of soil improvers and growing media. Nitrogen in N-N-linkages, N-O-linkages and some
heterocyclics (especially pyridine) is only partially determined. [6], [7], [8]
The method is not applicable to liming materials and preformed materials such as mineral wool slabs
and foam slabs.
NOTE The requirements of the standard may differ from the national legal requirements for the declaration of
the products concerned.
ÖNORM EN 13654-1
2002 01 01
Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
Norm
↖
Norm
Issue date :
2008 01 01
Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density
Norm
Issue date :
1995 08 01
Water for analytical laboratory use - Specifications and test methods (ISO 3696:1987)
