Registration Dossier
Registration Dossier
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EC number: 481-080-8 | 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
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- yes
Test material
- Details on test material:
- - Name of test material (as cited in study report): T-126
- Molecular weight (if other than submission substance): 710.33
- Substance type: toner additive; charge control agent
- Physical state: solid
- Analytical purity: 99.32%
- Impurities (identity and concentrations): unknown
- Lot/batch No.: SP-015
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- 9 mg each of the activated sludge was inoculated into the test vessel to make 30 mg/l as the concentration of suspended solid. After inoculation, the volume of the test solution was made to 300 ml with the basal culture as necessary.
- Duration of test (contact time):
- ca. 28 d
Initial test substance concentration
- Initial conc.:
- 10 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter followed for biodegradation estimation:
- test mat. analysis
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- 2 - 5
- Sampling time:
- 28 d
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 0
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Test substance is a persistent substance.
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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