Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

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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:
1993
Report Date:
1993

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 301 A (old version) (Ready Biodegradability: Modified AFNOR Test)
Deviations:
yes
Qualifier:
according to
Guideline:
EU Method C.4-A (Determination of the "Ready" Biodegradability - Dissolved Organic Carbon (DOC) Die-Away Test)
Deviations:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
sewage, domestic (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
40 mg/L
Based on:
DOC

Results and discussion

% Degradation
Parameter:
% degradation (DOC removal)
Value:
0
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes