Registration Dossier

Environmental fate & pathways

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:
1992
Report Date:
1992

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
Deviations:
yes
Qualifier:
according to
Guideline:
EU Method C.5 (Degradation: Biochemical Oxygen Demand)
Deviations:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, non-adapted
Duration of test (contact time):
28 d
Initial test substance concentrationopen allclose all

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (CO2 evolution)
Value:
10
Sampling time:
21 d
Remarks on result:
other:
Parameter:
% degradation (CO2 evolution)
Value:
14
Sampling time:
28 d
Remarks on result:
other:

Applicant's summary and conclusion

Validity criteria fulfilled:
yes