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Toxicity to microorganisms

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Description of key information

EC50 (3h) for respiration inhibition of activated sludge by test item was > 10 mg/l.

Key value for chemical safety assessment

Additional information

The study was run accordingg to OECD guideline 209.

A preliminary study was carried out with test substance concentrations of 1, 10, 100 and 1000 mg/l.

Based on the results obtained in this preliminary test, it was decided to make new measurements on 10 mg/l replicates.