Polytest Detection Tubes - Qualitative
For short-term measurements more than 160 Draeger-Tubes are available to measure the spot concentrations of specific gases. Measurement usually takes between 4 seconds and 15 minutes. The tubes are used either manually with the Draeger-Tube Accuro Pump or automatically with the Draeger X-act 5000.
A wide range of different gases and vapors can be detected and measured, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
Polytest Detection Tubes - Qualitative
| Standard Measuring Range: |
Qualitative determination of easily oxidable substances. |
| Number of strokes n: |
5 |
| Time for Measurement: |
approx. 1.5 min. |
| Color Change: |
white ??> brown, green or violet (depending on substance) |
| Temperature: |
0 to 50 °C |
| 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
|
| 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 Draeger Polytest should be qualified by independent methods, particularly when combustible gases and vapors close to the LEL, or toxic substances are suspected. |
Polytest Detection Tubes - Qualitative
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