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, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
|Standard Measuring Range:
||1 to 20 ppm
|Number of strokes n:
|Time for Measurement:
||approx. 5 min
||± 10 to 15 %
||yellow──> brown gray
||10 to 30 °C
||1 to 18 mg H2O / L
||C6H5OH + Ce(SO4)2 + H2SO4 ──>
brown gray reaction product
||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.
||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.