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 (TOC) by dry combustion 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 FprEN 18261:2026 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) More  Comment 
DIN EN 18254 2023-04-27 Soil improvers and growing media - Determination of the inorganic arsenic content; German version FprEN 18254:2026 More  Comment 
DIN EN 18255 2023-04-23 Soil improvers and growing media - Determination of organic nitrogen; German and English version FprEN 18255:2025 More  Comment 
DIN EN 18259 2023-04-23 Soil improvers and growing media — Determination of aqua regia soluble elements More  Comment 
DIN EN 18252 2023-04-23 Soil improvers and growing media - Determination of the chloride content; German and English version FprEN 18252:2026 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 More  Comment 
DIN EN 18256 2023-04-23 Digestate - Determination of the residual biogas potential; German and English version prEN 18256:2025 More  Comment 

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