Drager Short Term Detection Tubes - Sulphur Dioxide 20/a (Pack of 10)
These Drager short-term detection tubes are a cost-effective way of measuring sulphur dioxide (20/a). The tubes have a measurement range of 20 to 2000 ppm and a shelf life of 2 years.
Please note that one pack contains 10 tubes.
Short-term detection tubes require the use of the Drager Accuro Gas Detection Pump. Click here to buy this product.
- 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
|Standard Measuring Range:||20 to 200 ppm|
|Number of Strokes n:||10|
|Time for Measurement:||approx. 3 min|
|Standard Deviation:||± 10 to 15 %|
|Color Change:||brown yellow --> white|
|Ambient Operating Conditions|
|Temperature:||0 to 40 °C|
|Absolute Humidity:||< 30 mg H2O / L|
|SO2 + I2 + 2 H2O --> H2SO4 + 2 HI|
|Hydrogen sulfide is indicated, with the same sensitivity. It is impossible to measure sulfur dioxide in the presence of hydrogen sulfide. Nitrogen dioxide will shorten the reading.|
|Extension of the Measuring Range|
|Using n = 1+3 desorption strokes, multiply the reading by 10; the range of measurement is 200 - 2,000 ppm. The desorption strokes are to be taken in clean air (i.e. free of sulfur dioxide) immediately following the single pump stroke.|