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EC number: 943-687-0
CAS number: -
Table 1 Contents of TOC in test solutions during the limit test
Geometric mean (mg/L)
-6.4 ~ 10.0
An acute toxicity test was performed, according to OECD guideline 203
and GLP principles, to assess the toxicity of STABiO D-376N to Gobiocypris
rarus (Chinese rare minnow). The test was performed under
semi-static conditions with a renewal period of 24 hours. The total test
duration was 96 hours. Based on the results of a range finding test in
which no mortality was observed at the tested concentration (100 mg/L),
a limit test was performed with a nominal concentration of 100 mg/L. Ten
fish were exposed to the test solution (one replicate) and ten to a
blank control (1 replicate). Observations for mortality were performed
at t=0, 3, 24, 48, 72 and 96 hours. To determine the test concentrations
during the test period, samples were taken at the beginning of the test,
before an after each renewal period and at the end of the test. Analysis
was based on total organic content (TOC) and showed that the test
concentrations remained within 93 - 101% of the initial measured
concentration in the fresh solutions.
No mortality occured during the exposure period in the blank control or
in the treatment group. The LC50 of STABiO D-376N was determined to be
>6.21 mg/L based on the geometric mean measured TOC concentration.
All acceptability criteria were met and the study was considered valid.
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