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Environmental fate & pathways

Biodegradation in water: screening tests

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301B  From the results obtained under the experimental conditions employed, the evaluation of the biotic degradation of the test article using the modified Sturm test showed: Biodegradation of the test article after 28 days = 3 %. This test article can be considered as: Not readily biodegradable. 
301C The test substance was not biodegraded by microorganisms under the present test conditions. The percentage biodegradation after 28 days were as follows, each calculated as average value from 3 test vessels: BOD 0 % biodegradation, HPLC 2 % biodegradation.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

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