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: 217-568-2
CAS number: 1889-67-4
The purpose of the 3-hour test was to
evaluate the influence of the
1,1'-(1,1,2,2-tetramethylethylene)dibenzene on the activity of activated
sludge by measuring the respiration rate under defined conditions
according to OECD 209, Regulation (EC) No. 440/2008 Method C.11, EPA
OPPTS 850.6800. 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. The test item was
investigated at one (limit) concentration level of 1000 mg/L. The
observed oxygen consumption rates consequently the specific respiration
rates were in the range of the blank controls, no inhibitory effect of
the test item was observed. Based on measured oxygen consumption values
and calculated specific respiration rates it can be stated that the
3-hour EC10 and EC50 values of the test item are higher than 1000 mg/L.
Based on the statistical evaluation in this test the NOEC was ≥ 1000
Under the conditions of the performed
Activated Sludge Respiration Inhibition Test, the EC10 and EC50 values
of test item were determined to be higher than 1000 mg/L. Based on the
statistical evaluation in this test the NOEC was ≥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.
Šajā tīmekļa vietnē tiek izmantoti sīkfaili, lai nodrošinātu Jums vislabāko lietojumu mūsu tīmekļa vietnēs.
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