DIN EN 13654-1:2025-11
Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German and English version prEN 13654-1:2025 / Note: Date of issue 2025-09-26*Intended as replacement for DIN EN 13654-1 (2002-01).
| Fecha edición: |
2025-11-01
En Vigor
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| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | 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. [7], [8], [9]. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned. |
| Keywords: | Agriculture|Chemicals|Determination procedures|Extraction|Extraction agents|Extraction methods of analysis|Growing media|Inter-laboratory tests|Kjeldahl|Kjeldahls method|Methods of analysis|Modified|Nitrogen|Nitrogen content|Nitrogenous fertilizers|Soil improvement|Soil improving materials|Soils|Soluble|Solvents|Substrates (insulating) |
| ICS: | 65.080 - Fertilizantes |
| CTN: |
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