Registration Dossier
Registration Dossier
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EC number: 939-389-5 | CAS number: -
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Data waiving:
- other justification
- Justification for data waiving:
- the study does not need to be conducted because the substance is found to be readily biodegradable and the applied test concentrations are in the range of concentrations that can be expected in the influent of a sewage treatment plant
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
- Conclusions:
- In accordance with column 2 of Annex VIII 9.1.4 of EC 1907/2006 the testing is not required as the substance is readily biodegradable .
Furthermore, data are available from the toxicity control in the ready biodegradation test (IBACON, 2008). Within this test, a treatment containing the test itemat 103 mg/L and sodium benzoate was incubated, and 81% biodegradation was noted within 14 days based on ThOD NH4. After 28 days, 94% degradation was measured. Thus, the test item can be assumed to be not inhibitory to the aerobic activated sludge microorganisms. - Executive summary:
In accordance with column 2 of Annex VIII 9.1.4 of EC 1907/2006 the testing is not required as the substance is readily biodegradable .
Furthermore, data are available from the toxicity control in the ready biodegradation test (IBACON, 2008). Within this test, a treatment containing the test itemat 103 mg/L and sodium benzoate was incubated, and 81% biodegradation was noted within 14 days based on ThOD NH4. After 28 days, 94% degradation was measured. Thus, the test item can be assumed to be not inhibitory to the aerobic activated sludge microorganisms.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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