Registration Dossier
Registration Dossier
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EC number: 931-285-8 | 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:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- Mixed LOF
- IUPAC Name:
- Mixed LOF
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- Activated sludge was obtained from the Somerset-Raritan Valley Sewage Authority in Bridgewater, NJ, USA.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- ca. 41 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 52
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- Sodium benzoate degraded >60% by day 14, and fulfilled guideline requirement.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- 52% biodegradation of mixed LOF was observed after 28 d in an OECD 301F ready biodegradability test, indicating the substance is inherently biodegradable.
- Executive summary:
52% biodegradation of mixed LOF was observed after 28 d in an OECD 301F ready biodegradability test, indicating the substance is inherently biodegradable.
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