>BSI Standards >65 AGRICULTURE>65.080 Fertilizers>25/30479516 DC Draft BS EN 16087-1 Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter Part 1: Oxygen uptake rate (OUR)
immediate downloadReleased: 2025-10-10
25/30479516 DC
Draft BS EN 16087-1 Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter Part 1: Oxygen uptake rate (OUR)
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Standard number:
25/30479516 DC
Pages:
20
Released:
2025-10-10
Status:
Draft for Comment
DESCRIPTION
25/30479516 DC
This standard 25/30479516 DC Draft BS EN 16087-1 Soil improvers and growing media - Determination of the aerobic biological degradation rate of organic matter is classified in these ICS categories:
65.080 Fertilizers
This document describes a method to determine the stability of materials (e.g. compost, digestate) used as components (ingredients) in growing media, soil improvers and organic fertilisers by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is a direct parameter for the degradation rate of biodegradable organic matter that is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 20 mm exceeding 20 % by volume. NOTE The relation between the degradation rate and the oxygen uptake rate under the same conditions is depending on the type of material, for example by the C/N ratio. So it is important for the interpretation and limit values to be set based on the type of material.