NA 057

DIN Standards Committee Food and Agricultural Products

Project

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method

Abstract

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.

Begin

2023-04-23

WI

00223108

Planned document number

DIN EN 13654-1 rev

Project number

05702218

Responsible national committee

NA 057-03-01 AA - Soil improvers and growing media  

Responsible european committee

CEN/TC 223/WG 4 - Analytical methods  

previous edition(s)

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German version EN 13654-1:2001
2002-01

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Contact

Konstantina Döhring

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