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:
1987
Report date:
1987

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other:
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)

Test material

Constituent 1
Test material form:
solid: particulate/powder

Study design

Oxygen conditions:
anaerobic
Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentrationopen allclose all
Initial conc.:
100 mg/L
Based on:
test mat.
Initial conc.:
98 mg/L
Based on:
test mat.

Results and discussion

% Degradation
Parameter:
% degradation (DOC removal)
Value:
88.9
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified