Description
Dräger Tubes For Short Term Measurements: Water Vapor 20/a-P
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 (Water Vapor 20/a-P).
The tubes come in a pack of 1 tubes and have a shelf life of 2 years.
Application Range:
Use in Aerotest Alpha, MultiTest med. Int., Aerotest Simultaneous HP
| Standard Measuring Range: | 20 to 250 / 35 to 500 / 150 to 1500 mg H2O/m3 |
| Test Volume: | 40 L / 20 L |
| Flow Rate: | 4 L / min |
| Time for Measurement: | 10 min. / 5 min. / 2.5 min. |
| Standard Deviation: | ± 15 to 20 % |
| Colour Change: | yellow to red-brown |
Ambient Operating Conditions:
| Temperature: | 0 to 40 °C |
| Absolute Humidity: | cf. measuring range |
| Pressure: | The tube may only be used for depressurized compressed air |
Reaction Principle:
H2O + SeO2 + H2SO4 ~> reddish brown reaction product
Cross Sensitivity:
Alcohols and unsaturated hydrocarbons of high concentrations may cause a diffused discoloration of the indicating layer.
Evaluation:
-.
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