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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Endpoint:
biodegradation in water: inherent 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 guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
Deviations:
no

Test material

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
other:
Duration of test (contact time):
28 d
Initial test substance concentrationopen allclose all
Initial conc.:
252 mg/L
Based on:
test mat.
Initial conc.:
250 mg/L
Based on:
test mat.
Initial conc.:
150.1 other:
Based on:
test mat.
Initial conc.:
148.5 other:
Based on:
test mat.

Results and discussion

% Degradation
Parameter:
% degradation (DOC removal)
Value:
25
Sampling time:
28 d

Applicant's summary and conclusion