Colorimetric Gas Detection Tubes
Detector tubes are easy to use and relatively inexpensive, with a method that is intrinsically safe, allowing it to be deployed in all hazardous areas. Normally supplied in packs of ten, the tips are broken off, and the tube is inserted into the hand pump.
As a sample is drawn it travels up the tube toward the pump, it reacts with the reagent causing a color change that is proportional to the concentration of target gas.. The point where this reaction stops is read off against graduated markings on the tube.
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