Acetylene Detection Tubes (0.05 to 4%)

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Item #: 171
MFG: GasTec

UOM: Box of 10

$96.47 Was: $103.13
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Acetylene Detection Tubes (0.05 to 4%)

Gastec Detector Tube No 171 is used for the detection of Acetylene in air of industrial areas or environmental atmospheric conditions.

  • Measuring Range of
    • 0.05 to 0.1% - 2 pump strokes
    • (0.1) to 2% - 1 pump stroke
    • 2 to 4% - 1/2 pump stroke
  • Sampling Time: 45 seconds per pump stroke
  • Detecting Limit: 0.02% (2 pump strokes)
  • Changes from White to Brown
  • Corrections for temperature & humidity: Temperature correction is necessary
  • 3 Year Shelf Life
  • Store the tubes in a cool and dark place.
  • Reaction principle: HC≡CH + I2O5 → H2S2O7 + I2

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Carbon monoxide ≧ 0.1% + Brown (≧ 0.1%)
Ethylene ≧ 0.5% + Brown (≧ 0.5%)
Hydrocarbons (≧ C3) + Brown

Other substances measurable with this detector tube:

Substance Correction No. of pump strokes Measuring range
Benzene Factor: 0.3 4 0.03 to 0.6%
Ethylene Factor: 1.0 1 0.1 to 2.0%
1,1,1-Trichloroethane Factor: 0.6 1 0.0 to 1.2%