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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

 An OECD 301F Manometric Respirometry test was conducted using C6-C7, n-alkanes, isoalkanes, cyclics, < 5% n-hexane.  The test substance was 98% degraded at the end of 28 days, and 83% degraded at the end of the 10 -day window. The substance is therefore considered to be readily biodegradable. This can be read across to Hydrocarbons C6, n-alkanes, iso-alkanes, cyclics, n-hexane rich.

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Additional information

A OECD 301F Manometric Respirometry test was conducted using C6-C7, n-alkanes, isoalkanes, cyclics < 5% n-hexane (Shell 1997). The test substance was 98% degraded at the end of 28 days, and 83% degraded at the end of the 10 -day window. The reference substance was 104% degraded, therefore the test is valid. The test substance is readily biodegradable and does not inhibit degradation. This can be read across to Hydrocarbons C6, n-alkanes, iso-alkanes, cyclics, n-hexane rich.