Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity of FAT 40858/A TE to Activated Sludge in a Respiration Inhibition Test (Limit Study)
Key value for chemical safety assessment
Additional information
Toxicity of Test Item: |
The test item was soluble in water. Therefore, the test item was directly weight into the test vessels. The respiration rates of the activated sludge treated with the test item at a concentrations of 100 mg/L differed by less than 10% from control. |
3-hour EC10, EC20and EC50of Test Item: |
Based on measured inhibition rates, the 3-hour EC10, EC20and EC50could not be quantified because at a nominal test concentration of 100 mg/L less than 10% inhibition was noted after three hours incubation. The test according to OECD 209 guideline does not provide a threshold value for the determination of a NOEC. If a deviation of≤15% between test item treated activated sludge and control is considered not be an effect, the NOEC of FAT 40858/A TE will be established above 100 mg/L. |
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