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EC number: 201-645-2
CAS number: 85-98-3
The influence of the test substance, Centralit, on the respiration rate of activated sludge was investigated after a contact time of 3 hours. Test was performed according to: Method C.11 - Activated Sludge Respiration Inhibition Test, Council Regulation (EC) No. 440/2008, published in O.J.L 142, 2008.The abiotic decomposition was not detected even at the highest concentration of the test substance. The pH value during the main test was in the range of 7.1 to 7.9.
basis of the effective concentrations describing the respiration
inhibition of activated sludge caused by the test substance, Centralit,
the EC50 was found to be: EC50 > 1 000 mg.L-1
current experimental conditions, all tested concentrations in the main
test provided no significant inhibition of respiration rate. Therefore
it was not possible to calculate the EC50 value.
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