Registration Dossier
Registration Dossier
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EC number: 701-230-0 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity of the test substance to microorganisms was investigated via an inhibition control in a ready biodegradability study (OECD 301 F). The domestic, non-adapted activated sludge used as inoculum showed no significant inhibition of its degradation potential after a test duration of 28 days at a test substance concentration of 100 mg/L. This value is therefore selected as a NOEC for chemical safety assessment.
This result is supported by the outcome of a guideline study similar to OECD 209 (ISO 8192) for which only a summary is available. In this study an EC50 (30 min) > 100 mg/L was determined . Based on these results, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
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