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
