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EC number: 601-409-2
CAS number: 116020-44-1
The test item was investigated for its ready biodegradability in a Manometric Respirometry Test over a period of 28 days. The biodegradation was followed by the oxygen uptake of the micro organisms during exposure. As a reference item sodium benzoate was tested simultaneously under the same conditions as the test item, and functioned as a procedure control.The GLP study was performed according to OECD TG 301F. The toxicity control of this study provides data to derive a NOEC for the activated sludge respiration inhibition.
In the toxicity control containing both the test item and reference 27% biodegradation was noted within 14 days and 28% biodegradation was determined after 28 days of incubation. According to test guidelines the test item can be assumed to be not inhibitory on the activated sludge micro organisms because degradation was > 25 % within 14 days.
From this degradation study a NOEC of 30 mg/L (nominal) can be derived for the activated sludge activity.
For this endpoint data from a degradation study (Toxicity control) have
been provided. The NOEC derived from this study amounts to 30 mg/L.
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