UCI International Inc.

Concentration (mg/L)  1        10      40      70      100    
Concentration 0.00  2.30  3.69  4.25  4.61 
Number Exposed 20   20  20 20  20 
Mortalities (% organisms are affected)  0  0
 
Reference: M.A. Hamilton, R.C. Russo, and R.V. Thurston. 1977. Trimmed spearman-Karber method for estimating median lethal concentrations in toxicity Bioassays environment SCI Technology.
Date: 10/13/1998 through 10/15/1998
Chemical: Ultra Biocid
Species: Carioaphnia dubia
Duration: 48 hours
Trimmed Spearman-Karber Method for Calculation of EC50 and LC50 in BioAssays
The minimum required trim 100.00 is too large.
The LC50 is > 100mg/L so SK is not calculable.