Application Range
Standard Measuring Range: 5 to 60 ppm
Number of Strokes n: 5
Time for Measurement: approx. 3 min
Standard Deviation: ± 10 to 15 %
Color Change: yellow -> blue
Ambient Operating Conditions
Temperature: 10 to 40 °C
Absolute Humidity: 5 to 12 mg H2O / L
Reaction Principle
(C2H5)3N + acid -> blue reaction product
Cross Sensitivity
Other basic substances such as organic amines and ammonia are indicated, but with different sensitivities.