Soil quality — Determination of abundance and activity of soil microflora using respiration curves

ISO 17155:2002 specifies a test method for determining the activity of the active aerobic, heterotrophic microbial biomass in soils. This method is applicable to the monitoring of soil quality and to the evaluation of the ecotoxic potential of soils and soil materials. It is also applicable to soils that are contaminated experimentally in the field or in the laboratory (chemical testing) and for soils sampled along contamination gradients in the field.