Registration Dossier
Registration Dossier
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EC number: 471-170-5 | 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
- Study period:
- August 30th, 2005 to March 27, 2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP and followed recognized Japanese test method
Data source
Reference
- Reference Type:
- other: Unnamed report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Japanese protocolTest Method Relating to New Chemical Substances
- Principles of method if other than guideline:
- Test Method Relating to New Chemical Substances
Yakushokuhatsu No. 1121002, Heisei 15,11,13 Seikyoku No. 2, Kanpokihatsu No. 031121002, November 21, 2003; the latest revision, April 1 2005. - GLP compliance:
- yes
Test material
- Test material form:
- liquid
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- Mixed liquid suspended solids, from Chemicals Evaluation and Research Institute, Japan
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- DOC removal
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Parameter followed for biodegradation estimation:
- other: BOD Biochemical oxygen demand
- Details on study design:
- est bottle
TEST CONDITIONS
- Composition of medium: MLSS
- Additional substrate: anline
- Solubilising agent (type and concentration if used): basal medium
- Test temperature: 25 +- 1 C
- pH: 7.2 to 7.3
- pH adjusted: no
- Suspended solids concentration: 30 mg/L
- Continuous darkness: no
TEST SYSTEM
BOD: closed system oxygen consuming measuring appratus
pH: PH meter
DOC: calibrate TOC analyzer TOC- 5000A, Shimadzu, Co.
SAMPLING
- Sampling frequency: BOD for 28 days; pH at day 28;DOC at day 28 and residual test substance amount at day 28
CONTROL AND BLANK SYSTEM
- Bottle 1: aniline+sludge+basal medium
bottle 2: sludge+basal medium
bottle 6: test substance +water
Reference substance
- Reference substance:
- aniline
Results and discussion
- Test performance:
- biodegradability judged valid as validity criteria all met
% Degradationopen allclose all
- Parameter:
- other: BOD
- Value:
- 0
- Sampling time:
- 28 d
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 7
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
BOD
0 % degradation after 7 d 0 % degradation after 14 d 0 % degradation after 21 d 0 % degradation after 28 d
DOC: degradability was not claculated because the test substance was insoluble in water
residual test substance: average of 7% over 28 days
calculated from 3 sample bottles with variation of 2, 3 and 17%,
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance):
68 % degradation after 7 d
79 % degradation after 14 d
79 % degradation after 21 d
79 % degradation after 28 d
Any other information on results incl. tables
For the HPLC chromatogram, LC/MS and GPC analysis data the existance of the transformed products could not confirmed. The results indicate there is little possibility of the existence of the transformed product or the transformed product can not be detected by these analysis as below the limit of detection.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: not readily biodegradable
- Conclusions:
- FMM is not readily biodegradable under conditions of this test.
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