Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The biodegradability of the substance was shown in a test on ready biodegradability and a test on inherent biodegradability. In both tests the substance does not fulfill the validation criteria for ready biodegradability nor for ready inherent biodegradability. Hence the test substance has to be considered as non ready biodegradable.

Additional information

The ready biodegradability of the test substance was determined with non-adapted activated sludge in the Manometric Respirometry Test for a period of 28 days. Both test item replicates reached the 10 % level (beginning of biodegradation) within 2 days. The 60 % pass level was not reached within 28 days by the test item replicates. After 28 days the mean biodegradation was 25 %. The test item is classified as not readily biodegradable within 28 days.

The inherent biodegradability of the test item was determined with non-adapted activated sludge using an automated closed-system oxygen consumption measuring apparatus (BOD-meter) with the test substance as sole source of organic carbon for a period of 28 days. after 28 days, the mean perrcentage biodegradatin of the test substance was 40.4%. the test item is classified as not inherent biodegradable within 28 days.