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: 947-652-0
CAS number: 943986-70-7
Acceptability of the test:
- The positive control substance was
biodegraded by at least 60% (73%) within 14 days.
- The difference of duplicate values for
%-degradation of the test substance was always less than 20 (≤ 11%).
- The total CO2 release in the blank at the
end of the test did not exceed 40 mg/L (44.0 mg CO2 per 2 litres of
medium, corresponding to 22.0 mg CO2/L).
- The Inorganic Carbon content (IC) of the
test substance (suspension) in the mineral medium at the beginning of
the test was less than 5% of the Total Carbon content (TC). Since the
test medium was prepared in tap-water purified by reverse osmosis
(Milli-RO water (Millipore Corp., USA, carbon levels < 500 ppb)), IC was
less than 5% of TC (mainly coming from the test substance, 12 mg TOC/L).
Since all criteria for acceptability of the
test were met, this study was considered to be valid.
The ready biodegradation of the test item
under the conditions of the carbon dioxide (CO2) evolution test
(modified Sturm test) was investigated according to OECD guideline 301 B
and GLP principles. A test concentration of 12 mg/L (as TOC) was tested
in duplicate during 28 days. The relative biodegradation values
calculated from the measurements performed during the test period
revealed 18 and 12% biodegradation, for replicate A and B, respectively
(based on ThCO2)). In the toxicity control, the substance was found not
to inhibit microbial activity. The study is considered to be reliable
without restrictions. In conclusion, the substance was determined to be
not readily biodegradable under the conditions of the modified Sturm
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.
Sellel veebilehel kasutatakse küpsiseid, et tagada lehe parim kasutus.
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