Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 263-503-6
CAS number: 62314-25-4
study was performed to assess the effect of the test item on the
respiration of activatedsewage
sludge. The method followed was designed to be compatible with the OECDGuidelines
for Testing of Chemicals (2010) No. 209 "Activated Sludge, RespirationInhibition
Test (Carbon and Ammonium Oxidation)".
sewage sludge was exposed to an aqueous solution of the test item atconcentrations
of 10, 100 and 1000 mg/L (3 replicates of the 1000 mg/L test
a period of 3 hours at measured temperatures of between 19 and 20 °C
with the additionof
a synthetic sewage as a respiratory substrate.The
rate of respiration was determined after 3 hours contact time and
compared to data forthe
control and a reference item, 3,5-dichlorophenol.
effect of the test item on the respiration of activated sewage sludge
gave a 3-Hour EC50value
of greater than 1000 mg/L. The No Observed Effect Concentration (NOEC)
hours exposure was 1000 mg/L.It
was considered unnecessary and unrealistic to test at concentrations in
reference item gave a 3-Hour EC50value
of 9.3 mg/L, 95% confidence limits 7.3 to12
The effect of the test item on the respiration of activated sewage
sludge gave a
The No Observed Effect Concentration (NOEC) after 3 hours exposure was
It was considered unnecessary and unrealistic to test at concentrations
in excess of 1000 mg/L.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again