Description
Dräger Tubes For Short Term Measurements: Water Vapor 5/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 5/a-P).
The tubes come in a pack of 1 tubes and have a shelf life of 2 years.
Application Range:
Use in Aerotest 5000, Simultaneous CO2
| Standard Measuring Range: | 5 to 200 mg/m3 |
| Test Volume: | 50L |
| Flow Rate: | 2 L / min |
| Time for Measurement: | approx. 25 min |
| Standard Deviation: | ± 15 to 20 % |
| Colour Change: | yellow to reddish-brown |
Ambient Operating Conditions:
| Temperature: | 0 to 40 °C |
| Absolute Humidity: | - |
| 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:
The following evaluation applies for other volumes: reading: 5 10 30 50 70 100 150 200 mg H2O/m3 25 L vol.: 10 20 70 110 160 220 340 450 mg H2O/m3 100 L vol.: 2 4 12 20 28 40 60 80 mg H2O/m3 i.e. given a test volume of 25 L the scale reading of50 mg H2O/m3 corresponds to a measured value of 110 mg H2O/m3.
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