Application Range
Standard Measuring Range 100 to 1,000 ppm
Number of Strokes (n) 20
Time for Measurement approx. 5 min
Standard Deviation ±15 to 20 %
Color Change orange › brownish-green
Ambient Operating Conditions
Temperature: 0 to 40 °C
Absolute Humidity: 3 to 15 mg H2O / L
Reaction Principle
CH3CHO + CrVI › CrIII + various oxidation products
Cross Sensitivity
The tube does not differentiate between different aldehydes. Ethers,
ketones, esters, aromatics and petroleum hydrocarbons are indicated,
but with different sensitivities.