Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
FAT 75637 was found to be not-biodegradable.
Additional information
The ready biodegradability of FAT 75637/B TE was tested using the CO2 Evolution Test. This study was conducted according to OECD test guideline 301C in a GLP-certified laboratory. The test item was added to two test vessels at the concentration of 22.0 mg/L (equivalent to 15.6 mg of Total Organic Carbon/L). Two flasks as controls containing only the inoculum, one flask as procedure control containing reference item and one flask as toxicity control containing the test item and the reference item were included in the test. All the treatments were added with equal volume of inoculum which was collected from the secondary effluent treatment plant receiving predominantly domestic sewage and volume made with mineral media. Treatment mixtures were aerated for 29 days with carbon dioxide (CO2) free air. The CO2 released was trapped in a series of bottles containing barium hydroxide, which were connected to the outlet of each test vessel. The residual barium hydroxide was measured on days 2, 4, 7, 9, 12, 14, 18, 22, 26 and 29 after the initiation of the test. The mean percent degradation of test item was 17.06 % at the end of test while, the percent degradation of reference item was 92.51 % and the toxicity control was 43.88 % at the end of the test. The test fulfilled all the validity criteria. Based on the results, the test item was concluded as non-biodegradable since only 17.06 % mean degradation was achieved within the 28-day period of the test.
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