Benzene Detection Tubes (0.2 to 66 ppm)

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Item #: 121SP
MFG: GasTec
UOM:Box of 10
$70.96 Was: $86.48
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Benzene Detection Tubes (0.2 to 66 ppm)

Gastec® Benzene Detector Tube No. 121SP provides a rapid, fully quantitative analysis of BENZENE concentration in the mixture of other hydrocarbons with an accuracy tolerance of +/- 25% utilizing the Gastec Multi-Stroke Gas Sampling. Pump.

  • Measuring Range:
    • 0.2 to 20 ppm - 3 pump strokes - Correction factor: 1
    • 30 to 66 ppm - 1 pump stroke - Correction factor: 3.3
  • Sampling Time: 2 minutes per pump stroke
  • Detecting Limit: 0.1 ppm (n=3)
  • Colour Change: White to Brown
  • Reaction Principle:
    • 2C6H6+ HCHO → C6H5CH2C6H5 + H2O C6H5CH2C6H5 + H2S2O7 → Condensation polymer
  • Coefficient of Variation:
    • 10% (for 0.2 to 5ppm) , 5% (for 5 to 20 ppm)
  • 2 Year Shelf Life
  • Store the tubes at a cool and dark place
  • Comes in a box of 5 detector tubes and 5 pre tubes

Instructions

Data Sheet