Benzene Detection Tubes 15/a (15 - 420 ppm)

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Item #: 8101741
MFG: Draeger

UOM: Box of 10

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Benzene Detection Tubes 15/a (15 - 420 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: 15 to 420 ppm
Number of Strokes (n): 20 to 2
Time for Measurement: approx. 4 min.
Standard Deviation: ±30 %
Color Change: white ─> red brown
Temperature: 0 to 30° C
Absolute Humidity: max. 30 mg H2O / L
Reaction Principle: a) 2 C6H6 + HCHO ─> C6H5-CH2-C6H5 + H20
b) C6H5-CH2-C6H5 + H2SO4─> p-quinoid compound
Cross Sensitivity Other aromatics (toluene, xylene) are retained in the pre-layer causing a reddish brown discoloration. If the toluene or xylene concentrations are too high the entire pre-layer up to the indicating layer is discolored making a benzene measurement impossible. Petroleum hydrocarbons, alcohols and esters do not affect the indication.