1 Scope
This International Standard specifies the treatments for the measurement of the stability
of soil aggregates . It can be applied to a wide range of materials originating mainly from the tilled
horizons of cultivated soils. It can, however, also apply to any soil profile horizon,
whether it is cultivated or not. Aggregates ranging from 3 mm to 5 mm are measured.
However, the presence of gravel in the 2 mm to 5 mm fraction can distort the results.
If the percentage of gravel is between 10 % and 40 %, the > 2 mm fraction of the gravel
obtained from the tests should be washed and a mean weighted diameter ( MWD , see 6.1) calculated with and without gravel. If the percentage of gravel is > 40 %, the structural
stability tests are not significant. The method does not apply to unstructured materials,
as they are not sufficiently cohesive to form millimetric aggregates .
BS EN ISO 10930:2013 history
2012BS EN ISO 10930:2013 Soil quality. Measurement of the stability of soil aggregates subjected to the action of water
2012BS EN ISO 10930:2012 Soil quality. Measurement of the stability of soil aggregates subjected to the action of water