Item #: 8101641
MFG: Draeger

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 Range1 to 20 ppm
Number of strokes n:20
Time for Measurementapprox. 5 min.
Standard Deviation± 10 to 15 %
Color Changeyellow──>  brown gray
Temperature10 to 30 °C
Absolute Humidity1 to 18 mg H2O / L
Reaction PrincipleC8H5OH + Ce(SO4)2 + H2SO ──>
brown gray reaction product
Cross SensitivityCresols 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 InformationAt 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.