Hydrogen Sulfide Detection Tubes 0.2%/A (0.2 - 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 Range||0.2 to 7 Vol.-%|
|Number of Strokes (n)||1 + 2 desorption strokes in air|
|Time for Measurement||app. 2 min.|
|Standard Deviation|| ±5 to 10 %|
|Colour Change||pale blue ──> black|
|Temperature||0 to 60° C|
|Absolute Humidity||max 40 mg H2O / L|
|Reaction Principle||H2S + Cu^2+ ──> CuS + 2 H|
|Cross Sensitivity||In the presence of sulphur dioxide, the|
indicating layer can change to a yellowish
colour, but the hydrogen sulpide measurement
is not affected.
Comparable concentrations of mercaptan
will interfere with the reading.