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EC number: 413-110-2
CAS number: 135861-56-2
The effect of the test material on the respiration of activated sewage sludge gave a 3-Hour EC50 of >1000 mg/L.
A study was performed to assess the effect of the test material on the
respiration of activated sewage sludge. The method followed that
described in the OECD Guidelines for Testing of Chemicals No. 209
"Activated Sludge Respiration Inhibition Test".
The test material was aerated for a period of 3 h at 21°C in the
presence of activated sewage sludge with the addition of a synthetic
sewage as a respiratory substrate. The rate of respiration was
determined after 30 min and 3 h contact time and compared to data for
the control and a reference material, 3,5-dichlorophenol.
The effect of the test material on the respiration of activated sewage
sludge gave a 3-Hour EC50of greater than1000 mg/L.
The positive control, 3,5 -dichlorophenol gave a 3 -Hour EC50
of 8 mg/L.
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