Tetrahydrothiophene Detection Tubes (10 to 100mg/m3)

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Item #: 76M
MFG: GasTec

UOM: Box of 10

$93.53 Was: $100.45
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Tetrahydrothiophene Detection Tubes (10 to 100mg/m3)

Gastec Detection Tube No. 76M measures Tetrahydrothiophene with a Range of 10 to 100 mg/m3.

  • Measuring Range: 10 to 100 mg/m3
  • Number of Pump Strokes: 2 (200 ml)
  • Correction Factor: 1
  • Sampling Time: 1 minute per pump stroke
  • Detecting Limit: 2 mg/m3 (2 pump strokes)
  • Changes from Pink to Pale Yellow
  • Corrections for temperature & humidity: Temperature correction is necessary
  • 2 Year Shelf Life
  • Reaction Principle: C4H8S + MnO4 → Reaction Product
  • Relative Standard Deviation: 10% (for 10 to 30 mg/m3), 5% (for 30 to 100 mg/m3)
  • Store the tubes at cool and dark place
  • Comes in a Box of 5 pre tubes and 5 detector tubes

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
1-Butene ≦ 1000 ppm No Pale pink (whole layer)
tert-Butyl mercaptan ≦ 10 mg/m3 No Pale pink (whole layer)
Ethyl mercaptan ≦ 2 ppm No Pale pink (whole layer)
Ethylene ≦ 2000 ppm No Pale pink (whole layer)
Propylene ≦ 1000 ppm No Pale pink (whole layer)
Methanol ≦ 1000 ppm No Pale pink (whole layer)
Hydrogen sulfide ≦ 80 ppm No Pale pink (whole layer)