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Biodegradation in water: screening test

There are several reliable studies available for biodegradability screening tests of the TEA-Esterquats. The ready biodegradation of the test substance fully saturated TEA-Esterquat, hardened was investigated in a key study (Clariant GmbH, 2002) conducted according to OECD 301B (1992) over a period of 28 days and using activated sludge municipal sewage treatment plant as inoculum. The test substance was determined to be readily biodegradable (65 -66% biodegradation after 28 days).