DIN Standards Committee Food and Agricultural Products
Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method; German and English version prEN 13654-2:2025
Abstract
This document specifies a method for the determination of nitrogen in soil improvers and growing media. The dry combustion method was developed originally as a manual method by Dumas [4]. Its application is improved greatly due to the use of modern automated equipment and is applicable to all forms of nitrogen. NOTE This method has been validated in an interlaboratory study with specific products that were present on the market during the study (as included in Annex A, being composted bark (20 mm to 40 mm, biowaste compost (Rottegrad 3), green compost (Rottegrad 5, 0 mm to 15 mm), solid digestate, liquid digestate, soil improver (pellets, sieved 4 mm, growing media blend 1 (white peat, green compost, wood fibre, lime, inorganic fertilizer (NPK + micro elements)), growing media blend 2 (white peat, black peat, expanded perlite, lime, organic fertilizer) and growing media blend 3 (white peat, black peat, clay, inorganic fertilizer (NPK + micro elements))).
Begin
2021-10-04
WI
00223106
Planned document number
DIN EN 13654-2
Project number
05702214
Responsible national committee
NA 057-03-01 AA - Soil improvers and growing media
Responsible european committee
CEN/TC 223/WG 4 - Analytical methods
draft standard
Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method; German and English version prEN 13654-2:2025
2025-11
Order from DIN Media
