ISO 17155:2002规定了测定土壤中活性好氧异养微生物生物量活性的试验方法。该方法适用于土壤质量监测和土壤及土壤材料的生态毒性潜力评估。它也适用于现场或实验室（化学测试）实验污染的土壤，以及现场沿污染梯度取样的土壤。

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.