Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The biodegrability of 400160 was tested according to OECD guideline 301B resp. EU method C.4- C in a GLP certified testing facility.
The biodegradation for the whole test period was determined as 8.5%. Degradation missed 60% within 28 days. Therefore, the test item may be considered as “not biodegradable within 28 days”. For the positive control, a degradation of 71% was achieved within 11 d, ensuring the validity of the test.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The following data were determined for the test item 400160:
10-day-window: none
Degradation at the end of 10-day-window: not detected
Degradation at the end of the test: 8.5 %
Pass level following guideline: 60% at the end of 10-day-window
For the positive control, a degradation of 71% was achieved within 11 d, ensuring the validity of the test.
Ready biodegradability is defined in the guidelines as degradation surpassing 60% within 10 days after reaching a degradation level of 10%. The degree of biodegradation reached 8.5% after 28 days. Therefore, the test item 400160 may be considered as “not biodegradable within 28 days”.
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