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EC number: 222-746-8 | CAS number: 3598-16-1
The purpose of the 3-hour test was to evaluate the influence of the test item on the activity of the activated sludge by measuring the respiration rate under defined conditions, according to the OECD guideline 209. The respiration rates (total, heterotrophic and nitrification oxygen uptake rates) of samples of activated sludge fed with synthetic sewage were measured in an enclosed cell containing an oxygen electrode after a contact time of 3 hours.
Under the conditions of the performed Activated Sludge Respiration Inhibition Tests, the EC10 and EC50 values of test item were determined as greater than 1000 mg/L. Based on the statistical evaluation in this tests the NOEC was 1000 mg/L.
In conclusion these tests demonstrated the absence of inhibition of oxygen consumption by the test substance up to and including the limit concentration of 1000 mg/L. Therefore, a definite test was considered as unnecessary.
The EC10 and EC50 values of test item were determined to >1000 mg/L. Based on the statistical evaluation in this tests the NOEC was 1000 mg/L.
A value >1000 mg/L can not be entered in the key value below.
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