Application Range
Standard Measuring Range: 50 to 1,000 ppm / 250 to 2,000 ppm
Number of Strokes n: 2 / 1
Time for Measurement: approx. 80 sec / 40 sec
Standard : ± 10 to 15 %
Color Change: white -> yellowins green
Ambient Operating Conditions
Temperature: 10 to 40 °C
Absolute Humidity: max 30 mg H2O / L
Reaction Principle
a) NO + CrVI -> NO2
b) NO2 + aromatic amine -> yellowish green reaction product
Cross Sensitivity
Chlorine and ozone are also indicated, but with different sensitivities.
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