Registration Dossier
Registration Dossier
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EC number: 695-654-2 | CAS number: 1012341-48-8
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03 September 2008 - 02 October 2008.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Test performed in accordance with OECD guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Qualifier:
- according to guideline
- Guideline:
- ISO DIS 9439 (Ultimate Aerobic Biodegradability - Method by Analysis of Released Carbon Dioxide)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- GLP compliance:
- yes
Test material
- Test material form:
- solid: crystalline
- Details on test material:
- Substance type: white powder
- Physical state: solid
- Analytical purity: 99.80%
- Expiration date of the lot/batch: 31 Jan 2009
- Storage condition of test material: At room temperature in the dark
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- > 0 - < 28 d
Results and discussion
% Degradation
- Remarks on result:
- other: The test substance is not readily biodegradable under the conditions of the modified Sturm test.
- Details on results:
- The relative biodegradation values calculated from the measurements performed during the test period revealed no significant biodegradation of the test substance. In the toxicity control, the test substance was found not to inhibit mircrobial activity. In conclusion the test substance is designated as not readily biodegradable.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The test substance is designated as not readily biodegradable.
- Executive summary:
The relative biodegradation values calculated from the measurements performed during the test period revealed no significant biodegradation of the test substance. In the toxicity control, the test substance was found not to inhibit mircrobial activity. In conclusion the test substance is designated as not readily biodegradable.
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