Draeger Hydrogen Sulfide 2/a H2S Tubes P/N 6728821 (10pcs per box)
Measuring Range: 20 to 200 / 2 to 20 ppm
Number of Strokes using Draeger Accuro : 1 / 10
Time for Measurement: approximately 20 seconds / approximately 3.5 minutes
Standard Deviation: +/- 5 to 10%
Color Change: white to pale brown
Dräger Short-term Tubes have proven to be a very cost-effective and reliable method for the measurement of gases. Dräger, the leading tube manufacturer, has perfected its “laboratory behind glass” with more than 100 million tubes sold in the last ten years are testimony to the satisfaction of its customers. These versatile tubes make possible countless applications in industry, firefighting, disaster prevention, laboratory work, environmental protection and many other areas which require measurement results to be instantly available so that decisions can be made.
The functional principle is amazingly simple
The Dräger-Tube, a sealed glass vial, contains on a solid carrier material a chemical reagent which reacts to a particular gas or vapour with a characteristic colour change. To cause this reaction, a defined volume of ambient air is drawn through the tube using a Dräger-Tube pump. Even small quantities of gas are sufficient, and the user can easily read and analyse the result because of the scale marks printed on the tube.
A bestseller with good reason
Quick and targeted measurements
For spot measurement more than 500 different gases can be detected. The measurement usually takes between 5 seconds and 15 minutes. Furthermore, the easy-to-use Dräger-Tubes have already been calibrated and form a complementary unit with the Dräger-Tube pumps.
The Short-term Tubes are used either manually with the Dräger-Tube pump accuro or automatically with the Dräger X-act 5000. The results can then be read directly at the end of the measurement process.
Fields of application
‒ air examinations at the workplace in the range of legal limit values
‒ technical gas analysis in the areas of emission concentrations / immission concentrations
‒ measurements of compressed air / compressed gases
A large number of different gases and vapors can be measured by the Short-term Tubes. These tubes are used e.g. for the determination of concentration peaks, the measurement of exposures in the inhalation area, the determination of possible leakages as well as for the analysis of air in sewers, shafts, tanks or other confined spaces.