Phenol Detection Tubes 1/b (1 - 20 ppm)
For short-term measurements more than 160 Draeger-Tubes are available to measure the so-called spot concentrations of specific gases. A wide range of different gases and vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.Contains 10 tubes
|Standard Measuring Range||1 to 20 ppm|
|Number of strokes n:||20|
|Time for Measurement||approx. 5 min.|
|Standard Deviation||± 10 to 15 %|
|Color Change||yellow──> brown gray|
|Temperature||10 to 30 °C|
|Absolute Humidity||1 to 18 mg H2O / L|
|Reaction Principle||C8H5OH + Ce(SO4)2 + H2SO4 ──>|
brown gray reaction product
|Cross Sensitivity||Cresols are also indicated, but with|
different sensitivities. To determine
m-cresol multiply the indication by 0.8.
Benzene, toluene and other aromatics
without the Heteroatoms are not
indicated. Aliphatic hydrocarbons and
alcohols are not indicated.
|Additional Information||At a temperature of 0°C the resulting|
indication must be multiplied by 1.3,
at a temperature of 40°C it must be
multiplied by 0.8.