Drager Detection Tubes - Benzene 0.25/a (Pack of 10)
Please note: this product is now obsolete.
Ensure you receive reliable measurements of benzene gas with Drager’s short-term gas detection tubes. These particular tubes (0.25/a) have a measurement range of 0.25 to 2 ppm.
Please note these tubes come in a pack of 10 and have a shelf life of 2 years.
The Accuro Gas Detection Pump from Draeger Safety is required to use short-term gas detection tubes. View more information on this product by clicking here.
- Hard-to-reach places can be accessed and measured using various compatible accessories
- Excellent for on-the-spot measurements
- 10 seconds to 15 minutes is the time frame for readings and is totally dependent on the tube type
- Suitable applications include 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: | 0.5 to 10 ppm |
Number of Strokes n: | 40 to 2 |
Time for Measurement: | max. 15 min |
Standard Deviation: | ± 30 % |
Color Change: | white --> pale brown |
Ambient Operating Conditions | |
Temperature: | 10 to 40 °C |
Absolute Humidity: | 3 to 15 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, ethyl benzene) are indicated as well. It is impossible to measure benzene in the presence of these aromatics. Petroleum hydrocarbons, alcohols and esters do not affect the indication. | |
Additional Information | |
Before performing the measurement the ampoule must be broken and the liquid transferred onto the indicating layer so that it is completely saturated. |