BS EN 12225:2020 pdf free.Geosynthetics一Method for determining the microbiological resistance by a soil burial test. BS EN 12225 This document specifies a method for the determination of the microbiological resistance of geosynthetics including those of natural fibres and biodegradable polymers by a soil burial test.NOTE Experience and exhumation of geosynthetics which had performed successfully, in some cases for more than...