1 Scope
This International Standard specifies a test method for determining the activity of
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 for soils sampled along contamination gradients in the field
and to soils that are contaminated experimentally in the field or in the laboratory.