Description
Dräger Tubes For Short Term Measurements: Carbon Monoxide 8/a
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for (Carbon Monoxide 8/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
Application Range:
| Standard Measuring Range: | 8 to 150 ppm |
| Number of Strokes n: | 10 |
| Time for Measurement: | approx. 2 min |
| Standard Deviation: | ± 10 to 15 % |
| Colour Change: | white to pale brown |
Ambient Operating Conditions:
| Temperature: | 0 to 50 °C |
| Absolute Humidity | < 50 mg H2O / L |
Reaction Principle:
5 CO + I2O5 ~> I + 5 CO2
Cross Sensitivity:
Acetylene is also indicated, however, with less sensitivity. Petroleum hydrocarbons, benzene, halogenated hydrocarbons and hydrogen sulfide are retained in the pre-layer. In the case of higher concentrations of interfering hydrocarbons, use should be made of a carbon pre-tube (CH 24 101). Higher concentrations of easily cleavable halogenated hydrocarbons (e.g. trichloroethylene), are liable to form chromyl chloride in the pre-layer which changes the indicating layer to a yellowish-brown. CO determination is impossible in the case of high olefin concentrations..
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