MMTUEA

Draeger Hydrogen Sulphide + Sulphur Dioxide 0.2 %/a (0.2 to 7 vol %) Short Term Measuring Tubes ( Pack of 10)

0.70

SKU: CH28201 Category:

Description

 

  • Standard Measuring Range: 0.2 to 7 vol. %
  • Number of Strokes n: 1 + 2 desorption strokes in clean air
  • Time for Measurement: Approx. 2 min
  • Standard Deviation: ± 5 to 10 %
  • Color Change: Brown → Bright Yellow

Ambient Operating Conditions:

  • Temperature: 0 to 40 °C
  • Absolute Humidity: max. 40 mg H2O / L

Reaction Principle:

  • H2S + I2 → 2 HI + S2
    SO2 + I2 + 2H2O → 2 HI + H2SO4

Cross Sensitivity:

  • All substances oxidized by iodine are indicated, but with different sensitivities.
  • It is impossible to measure hydrogen sulfide and sulfur dioxide in the presence of such substances.

Extension of the Measuring Range:

  • Using n = 10, divide the reading by 10; the measuring range will be 0.02 to 0.7 vol. %.

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