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EC number: 943-080-0
CAS number: -
EC50 3h (freshwater OECD 209 study on activated sludge): >1000 mg/LNOEC 3h (freshwater OECD 209 study on activated sludge): >1000 mg/L
One experiment was performed.
All validity criteria were met. For the estimation of the EC50 of
the positive control, the fits showed good statistical correspondence of
the data with the dose-response-equation. The positive control gave an
EC50 of 11 mg/L which lie within the recommended range of 2 – 25 mg/L.
The coefficient of variation of oxygen uptake rate in control replicates
was below 30 % at the end of the test. The oxygen uptake rate of the
blank controls was above 20 mg O2per gram activated
sludge in 1 hour.
The test item was tested using 5 concentrations ranging from 1000
to 1 mg/L nominal concentration. For the highest test item concentration
1000 mg/L, 5 replicates were tested. Because no inhibition was observed
at the highest test concentration, the NOEC was determined as 1000 mg/L
and the EC50 as > 1000 mg/L. No observations were made which might cause
doubts concerning the validity of the study outcome.
The result of the test can be considered valid.
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