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EC number: -
CAS number: -
All validity criteria were met. For the estimation of the EC50 of the
positive control, the fit showed sufficient statistical correspondence
of the data with the dose-response-equation. The 24h-EC50i of potassium
dichromate was determined as 1.6 mg/L, lying within the demanded range
of 0.6 - 1.7 mg/L.
No significant toxicity was observed in the control, the solvent control
and the treatment. The analytical determinations of the test item showed
that the limit of water solubility in the test solution was present
during the test. The mean of the measured concentrations is calculated
and used as effective concentration for the determination of the results.
All blanks were contaminated with test item Sa190 and all"24 hours"
samples were contaminated with test item Sa 163. This might be caused by
contaminated amber bottles. As both test items show adsorption to glass,
the cleaning of the amber bottles was probably insufficient. As no
significant immobilisation was observed during the test, this can be
stated as uncritical. The result of the test is considered valid.
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