Soil improvers and growing media. Determination of the aerobic biological activity - Oxygen uptake rate (OUR)
Soil improvers and growing media. Determination of the aerobic biological activity - Oxygen uptake rate (OUR)
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1 Scope This European Standard describes a method to determine the aerobic biological activity of growing media and soil improvers or constituents thereof by measuring the oxygen uptake rate (OUR). The oxygen uptake rate is an indicator of the extent to which biodegradable organic matter is being broken down within a specified time period. The method is not suitable for material with a content of particle sizes > 10 mm exceeding 20 %.
Другие стандарты BS