Projects of CEN/TC 223/WG 4

DIN CEN/T? 00223146 2026-03-02 Soil improvers and growing media - Guidelines for the safety of users, the environment and plants More  Comment 
DIN EN 18253 2023-04-27 Soil improvers and growing media - Determination of total organic carbon by dry combustion; German and English version prEN 18253:2025 More  Comment 
DIN EN 18254 2023-04-27 Soil improvers and growing media - Determination of the inorganic arsenic content; German and English version prEN 18254:2025 More  Comment 
DIN EN 18261 2023-04-27 Compost and digestate - Determination of polycyclic aromatic hydrocarbons (PAH) by gas chromatography (GC) and high performance liquid chromatography (HPLC); German and English version prEN 18261:2025 More  Comment 
DIN EN 16087-1 2023-04-27 Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter - Part 1: Oxygen uptake rate (OUR); German and English version prEN 16087-1:2025 More  Comment 
DIN EN 13650 2023-04-23 Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements; German and English version prEN 13650:2025 More  Comment 
DIN EN 13039 2023-04-23 Soil improvers and growing media - Determination of organic matter content and ash; German and English version prEN 13039:2025 More  Comment 
DIN EN 13040-1 2023-04-23 Soil improvers and growing media - Sample preparation - Part 1: Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory bulk density; German and English version prEN 13040-1:2025 More  Comment 
DIN EN 16087-2 2023-04-23 Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter - Part 2: Self heating test for compost; German and English version prEN 16087-2:2025 More  Comment 
DIN EN 13654-1 2023-04-23 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German and English version prEN 13654-1:2025 More  Comment 

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