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BS EN 13654-1:2001

BS EN 13654-1:2001

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Current

The latest, up-to-date edition.

Soil improvers and growing media. Determination of nitrogen Modified Kjeldahl method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-11-2001

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Test sample
8 Procedure
9 Calculation
10 Expression of results
11 Precision
12 Test report
Annex A (informative) Results of an inter-laboratory trial
        to determine nitrogen (modified Kjeldahl method)
Annex B (informative) Methods of analysis used in the
        inter-laboratory trial
Bibliography

Specifies a method for the determination of nitrogen in soil improvers and growing media and is not applicable to liming and preformed materials such as mineral wool slabs and foam slabs.

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.

Committee
AW/20
DevelopmentNote
Supersedes 99/703435 DC (11/2001)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

BS PAS 100(2002) : 2002 SPECIFICATION FOR COMPOSTED MATERIALS
BS PAS 100(2005) : 2005 SPECIFICATION FOR COMPOSTED MATERIALS

EN 13040:2007 Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

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Hardcopy - English
PDF - English
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