Hydrogen Sulfide + Sulfur Dioxide Detection Tubes 0.2%/A (0.02 - 7% vol)

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Item #: CH28201
MFG: Draeger

UOM: Box of 10

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Hydrogen Sulfide + Sulfur Dioxide Detection Tubes 0.2%/A (0.02 - 7% vol)

For short-term measurements more than 160 Draeger Tubes are available to measure the so called spot concentrations of specific gases.

A wide range of different gases and vapors can be detected and measured, such as:

  • Determining and measuring concentration peaks
  • Measuring personal exposure in the inhalation area
  • Detecting leaks in pipelines, gas installations etc.
  • Air analysis in sewers, shafts and confined spaces
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 ─> pale yellow
Temperature: 0 to 40° C
Absolute Humidity: max. 40 mg H2O / L
Reaction Principle: H2S + I2 ──> 2 Hl + S2
SO2 + I2 + H2O ──> 2 Hl + 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
Using n = 10, divide the reading by 10; the measuring range will be 0.02 to 0.7 vol. %