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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Link to relevant study record(s)

Description of key information

The substance is readily biodegradable but failing the 10-day window criterion.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable but failing 10-day window

Additional information

The biodegradation potential of the substance in water was determined in a screening study according to OECD TG 301B (CO2 -Evolution Test) and in compliance with GLP criteria (BASF, 2014). In this study ca. 27 mg/L test substance (equivalent to 20 mg/L TOC) was inoculated with activated sludge from a municipal sewage plant for 28 days under aerobic conditions in the dark. During the incubation period degradation was followed by determining the carbon dioxide produced. After the 28 -day incubation period 70 -80% of the test substance was biodegraded. The pass level of 60% degradation was reached within 23 days after the start of the test. The 10 -window criterion was however not met. Based on these findings, the test substance is classified as readily biodegradable but failing the 10 -day window.