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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.
following data were determined for the test item 400160:
at the end of 10-day-window: not detected
at the end of the test: 8.5 %
level following guideline: 60% at the end of 10-day-window
the positive control, a degradation of 71% was achieved within 11 d,
ensuring the validity of the test.
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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