Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
The potential of the test material to undergo biodegradation was investigated in a modified Sturm test conducted in accordance with the standardised guidelines OECD 301B, EU Method C.4-C, ISO 9439 and ISO 10634 under GLP conditions.
Activated sludge from a municipal sewage treatment plant receiving predominantly domestic sewage was exposed to the test material for 75 days, with the last CO2 measurement on day 76. The test material was tested in duplicate at approximately 17 mg/L, corresponding to 12 mg TOC/L.
The relative biodegradation values calculated from the measurements performed during the test period revealed 17 and 21 % biodegradation of the test material for A and B, respectively, on day 29 and 59 and 42 % biodegradation at the end of the prolonged test period (75 days, last titration day 76).
Under the conditions of this study, the test material was determined not to be readily biodegradable.
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