Sulphur Dioxide 0.1/a, 0.1 - 3 PPM, Part # 6727101, 10 Tests 

Application Range

Standard Measuring Range: 0.1 to 3 ppm

Number of Strokes n: 100

Time for Measurement: approx. 20 min

Standard Deviation: ± 10 to 15 %

Color Change: yellow š orange

Ambient Operating Conditions

Temperature: 10 to 30 °C

Absolute Humidity: 3 to 15 mg H2O / L

Reaction Principle

SO2 + Na2[HgCI4] + methyl red š Na2[Hg(SO3)2] + 4 HCI

Cross Sensitivity

It is impossible to measure sulfur dioxide in the presence of other acidic gases.