Registration Dossier
Registration Dossier
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EC number: 427-360-5 | CAS number: -
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-B (Determination of the "Ready" Biodegradability - Modified OECD Screening Test)
- Deviations:
- no
Test material
- Test material form:
- other:
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 45 mg/L
- Based on:
- test mat.
- Initial conc.:
- 18.3 mg/L
- Based on:
- DOC
- Initial conc.:
- 45.7 mg/L
- Based on:
- test mat.
- Initial conc.:
- 21.9 mg/L
- Based on:
- DOC
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- 15
- Sampling time:
- 7 d
- Remarks on result:
- other:
- Parameter:
- % degradation (DOC removal)
- Value:
- 15
- Sampling time:
- 14 d
- Remarks on result:
- other:
- Parameter:
- % degradation (DOC removal)
- Value:
- 7
- Sampling time:
- 21 d
- Remarks on result:
- other:
- Parameter:
- % degradation (DOC removal)
- Value:
- 8
- Sampling time:
- 27 d
- Remarks on result:
- other:
- Parameter:
- % degradation (DOC removal)
- Value:
- 11
- Sampling time:
- 28 d
- Remarks on result:
- other:
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
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