This document specifies a method for sampling, extracting and preserving collembolans and mites from field soils as a prerequisite for using these animals as bio-indicators (e.g.？to assess the quality of a soil as a habitat for organisms).

The sampling and extraction methods of this document are applicable to almost all types of soils. Exceptions can be soils from extreme climatic conditions (hard, frozen or flooded soils) and other matrices than soil, e.g. tree trunks, plants or lichens.