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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Meets the criteria for classification as Reliable without restriction according to Klimisch et al (1997)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Annex V, C4-E Closed Bottle Test
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Reference substance
Reference substance:
other: Sodium Benzoate

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
7
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
5 % degradation after 4 d
0 % degradation after 7 d
1 % degradation after 11 d
3 % degradation after 14 d
2 % degradation after 18 d
2 % degradation after 21 d
2 % degradation after 25 d
7 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
66 % degradation after 4 d
71 % degradation after 7 d
75 % degradation after 11 d
75 % degradation after 14 d
76 % degradation after 18 d
77 % degradation after 21 d
86 % degradation after 25 d
78 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable