Draeger Tube, Polytest Qualitative, Box of 10
DRAEGER SAFETY INC.
/ Model #CH28401
Details
Draeger Tube - Polytest
Order No. CH 28 401
| Application Range | |
| Standard Measuring Range | Qualitative determination of easily oxidable substances |
| Number of Strokes n: | 5 |
| Time for Measurement: | approx. 1.5 minutes |
| Color Change: | white to brown, green or violet (depending on substance) |
| Ambient Operating Conditions | |
| Temperature: | 0 to 50° C ~ 32 to 122° F |
| Absolute Humidity: | max. 50 mg H2O / L |
| Reaction Principle | |
| CO + I2O5 → I2 + CO2 | |
| Cross Sensitivity | |
| Based on the reaction principle, many easily oxidised compounds are indicated, several examples are shown below: 2000 ppm acetone 10 ppm acetylene 50 ppm ethylene 1 ppm arsine 10 ppm octane 50 ppm benzene 500 ppm propane 100 ppm butane 5 ppm carbon monoxide 10 ppm styrene 1 ppm carbon disulfide 20 ppm perchloroethylene 2 ppm hydrogen sulfide 10 ppm toluene, Xylene Methane, ethane, hydrogen and carbon dioxide are not indicated. |
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| Additional Information | |
| If there is no reading, this does not always indicate that easily oxidizable substances are not present. In the individual case, the use of Dräger Polytest should be qualified by independent methods, particularly when combustible gases and vapors close to the LEL, or toxic substances are suspected. | |
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