Alcohol Detection Tubes 25/a (Range Varies)
Drager Short-term Tubes have proven to be a very cost-effective and reliable method for the measurement of gases.
For short-term measurements more than 160 Drager-Tubes are available to measure the so-called spot concentrations of specific gases. Measurement usually takes between 4 seconds and 15 minutes. The tubes are used either manually with the Drager-Tube pump accuro or automatically with the Drager X-act 5000.
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||25 to 5,000 ppm Methanol|
50 to 4,000 ppm i-Propanol
100 to 5,000 ppm n-Butanol
25 to 2,000 ppm Ethanol
|Number of Strokes (n)||10|
|Time for Measurement||approx. 5 min.|
|Standard Deviation|| ±25 %|
|Colour Change||brown -> brownish-black|
|Temperature||15 to 30° C|
|Absolute Humidity||max. 15 mg H2O / L|
|Reaction Principle||CH3OH + CR^VI ─> brownish-black|
|Cross Sensitivity||500 ppm n-octane in an overall|
discoloration of the tube.
400 ppm acetic acid ester = display of
approx. 60 ppm methanol.
200 ppm tetrahydrofurane = display of
approx. 900 ppm on Propanol scale.
1000 ppm acetone = display of approx.
200 ppm methanol.
400 ppm diethyl ether = display of
approx. 1000 ppm methanol.