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: 273-227-8
CAS number: 68953-84-4
3h-EC50 > 20 mg/L
The key study assesses the effect of DAPD (Polystay 100) on the
respiration rate of activated sludge micro-organisms. The test method is
based on OECD test guideline 209 and uses freshly obtained activated
sludge from a mainly domestic sewage treatment plant. DAPD is added to
the test vessels at 0.2, 2 and 20 mg/L. No dose-response effect on the
inhibition of the respiration rate of activated sludge was observed. The
3h-EC50 of DAPD therefore was concluded to be > 20 mg/L.
In the supporting study higher concentrations of DAPD (up to 10000 mg/L)
were tested according to the OECD 209 test protocol. Also in this case
no substantial toxicity towards micro-organisms was observed.
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.
På den här webbplatsen används kakor. Syftet är att optimera din upplevelse av den.
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