Description of BS ISO 23266:2020 2020
This document specifies one of the methods for evaluating the
habitat function of soils and determining effects of soil
contaminants and individual chemical substances on the reproduction
of the oribatid mite Oppia nitens by dermal and alimentary uptake. This chronic
(28-day) test is applicable to soils and soil materials of unknown
quality (e.g., contaminated sites, amended soils, soils after
remediation, agricultural or other sites under concern and waste
materials). This method is not intended to replace the earthworm or
Collembola tests since it represents another taxonomic group (=
mites; i.e., arachnids), nor the predatory mite test since this
species represents a different trophic level and ecological
niche.
Effects of substances are assessed using standard soil,
preferably a defined artificial soil substrate. For contaminated
soils, the effects are determined in the test soil and in a control
soil. According to the objective of the study, the control and
dilution substrate (dilution series of contaminated soil) should be
either an uncontaminated soil with similar properties to the soil
sample to be tested (reference soil) or a standard soil (e.g.,
artificial soil).
Information is provided on how to use this method for testing
substances under temperate conditions.
This document is not applicable to substances for which the
air/soil partition coefficient is greater than 1, or to substances
with vapour pressure exceeding 300 Pa at 25 °C.
NOTE
The stability of the test substance cannot be assured over the
test period. No provision is made in the test method for
monitoring the persistence of the substance under test.Â
About BSI
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