Application Range
Standard Measuring Range: 50 to 400 ppm
Number of Strokes n: 5
Time for Measurement: approx. 1,5 min
Standard Deviation: ± 10 to 15 %
Color Change: white -> brown
Ambient Operating Conditions
Temperature: 0 to 30 °C
Absolute Humidity: 5 to 12 mg H2O / L
Reaction Principle
Toluene + I2O5 + H2SO4 -> I2
Cross Sensitivity
Xylenes will be indicated with different sensivitites. Benzene causes a total discoloration into yellow. Petroleum hydrocarbons cause a total discoloration
into a diffuse red brown. Methanol, ethanol, acetone and ethyl acetate do not disturb the discoloration in the range of TLV-values