Application Range
Standard Measuring Range: 1 to 40 mg/L
Number of Strokes n: 10
Time for Measurement: approx. 2 min
Standard Deviation: ± 10 to 15 %
Color Change: yellow -> red brown
Ambient Operating Conditions
Temperature: 0 to 40 °C
Reaction Principle
H2O + SeO2 + H2SO4 ¨ reddish brown reaction product
Cross Sensitivity
Low molecular weight alcohols are indicated. A variety of other organic compounds, such as petroleum hydrocarbons are indicated.