Drager Detection Tubes - Benzene 5/a (Pack of 10)
Drager Safety short-term detection tubes are known worldwide as a cost-effective way of detection measurements of Benzene gas.
These particular tubes, Benzene 5/a, have a measuring range of 5 to 40 ppm and have a shelf life of 2 years. They come in a pack of 10 tubes.
The Drager Gas Detection Pump (Accuro) is compatible with the short-term gas detection tubes. You can purchase this product by clicking here.
- Obtain measurements in difficult places with various accessories
- On-spot-measurements and readings can be accessed
- Readings can take anything from 10 seconds to 15 minutes depending on the tube
- Pre-entry checks, confined space entry, variations in concentration levels and also contamination of breathing areas are amongst a number of potential of applications
Application Range | |
Standard Measuring Range: | 5 to 40 ppm |
Number of Strokes n: | 15 to 2 |
Time for Measurement: | max. 3 min |
Standard Deviation: | ± 30 % |
Color Change: | white --> red brown |
Ambient Operating Conditions | |
Temperature: | 0 to 40 °C |
Absolute Humidity: | max. 50 mg H2O / L |
Reaction Principle | |
2 C6H6 + HCHO --> C6H5-CH2-C6H5 + H2O C6H5-CH2-C6H5 + H2SO4 --> p-quinoid compound |
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Cross Sensitivity | |
Other aromatics (toluene, xylene) are retained in the pre-layer causing a reddish brown discoloration. If the toluene or xylene concentrations are too high the entire pre-layer up to the indicating layer is discolored making a benzene measurement impossible. Petroleum hydrocarbons, alcohols and esters do not affect the indication. |