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GAS232 Dichloroethane-1,2 Gastec Detector Tubes 1 – 39ppm
GAS232 Dichloroethane-1,2 Standard Gastec Detector Tubes
Gas detector tubes are glass tubes that are filled with chemical reagent that absorbs and reacts with the target gas or vapour being measured.
A colorimetric stain (a colour change) is created. For most tubes, the concentration is read directly from the pinpoint accurate measurement scale on each tube.
The Gastec detector tube system is comprised of a handheld Gastec air sampling pump and Gastec detector tubes.
|Measuring Range||1 to 39 ppm|
|Sampling Rate||100ml/min (300ml)|
|Sampling Time||2 minutes per pump stroke|
|Colour Change||White Pale Purple|
|Reaction Principle|| ClCH2CH2Cl + CrO3 + H2S2O7 Cl2
Cl2 + 3,3’-Dimethylnaphthidine Reaction product
|Coefficient of Variation||15% (for 1 to 4 ppm), 10% (for 4 to 15 ppm)|
|Shelf Life||1 year|
temperature & humidity
|Temperature correction is necessary|
|Store tubes in the refrigerator to keep at 10ºC(50ºF) or below|
|Calibration gas generation||Diffusion tube method|
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