Registration Dossier
Registration Dossier
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EC number: 935-853-6 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation of the submission substance in water was assessed.
Analysis of the test media from the test material culture vessels on Days 0 and 28 for Dissolved Organic Carbon (DOC) gave percentage degradation values of 45% for both test material Replicates R1 and R2. The degradation rates calculated from the results of the DOC analyses were higher than those calculated from inorganic carbon analysis. This was considered to be due to incorporation of test material into the microbial biomass prior to degradation, and hence CO2 evolution occurring.
The test material may be considered to be readily biodegradable if ≥ 60% degradation is attained within 28 days. This level of degradation must be reached within 10 days of biodegradation exceeding 10%.
The test material attained 16% mineralisation after 28 days based on CO2 evolution and is therefore not considered as readily biodegradable under the strict terms and conditions of the OECD Guideline No. 301B.
The toxicity control attained 52% degradation after 14 days and thereby confirming that the test material was not toxic to the sewage treatment micro-organisms used in the test.
The study was ranked reliability 1 according to the Klimisch et al scale. The study was conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.
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