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EC number: 425-220-8
CAS number: 5945-33-5
Activated sewage sludge micro organisms
limit test at the concentration of 1000 mg/L was performed based on
results from a preliminary range-finding test. The effect of the
test substance on the respiration of activated sewage sludge micro
organisms gave a 3 hours EC50 > 1000 mg/l. An NOEC of 1000 mg/l for
microorganisms was derived. Based on this study the PNEC stp value was
calculated. The NOEC
value derived from the study indicates no toxicity to microorganisms
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