Item #: CH28201
MFG: Draeger
Price: $133.00

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 vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.

Contains 10 tubes

Standard Measuring Range0.2 to 7 Vol.-%
Number of Strokes (n)1 + 2 desorption strokes in clean air
Time for Measurementapprox. 2 min.
Standard Deviation±5 to 10 %
Colour Changebrown ─> pale yellow
Temperature0 to 40° C
Absolute Humiditymax. 40 mg H2O / L
Reaction PrincipleH2S + I2> 2 Hl + Sx
SO2 + I2 + H2O > 2 Hl + H2SO4
Cross SensitivityAll 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.-%
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