Vinyl Chloride Detection Tubes (0.25 to 70 ppm)

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Item #: 131LB
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$97.20 Was: $104.29
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Product Details

Vinyl Chloride Detection Tubes (0.25 to 70 ppm)

Gastec Detection Tube No. 131LB measures Vinyl Chloride with a Range of 0.25 to 70 ppm.

  • Measuring Range:
    • 0.25 to 1 ppm
    • 1 to 20 ppm
    • 20 to 70 ppm
  • Number of Pump Strokes, 4, 2, 1
  • Correction Factor: 1/4, 1, 3.5
  • Sampling Time: 1.5 minutes per pump stroke
  • Detecting Limit: 0.05 ppm (4 pump strokes)
  • Color Change: Yellow to purple
  • Corrections for temperature & humidity: Temperature correction is necessary
  • 2 Year Shelf Life (in the refrigerator)
  • Relative Standard Deviation: 10 % (for 1 to 5 ppm), 5 % (for 5 to 20 ppm)
  • Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
  • Reaction Principle:
    • CH2:CHCl + PbO2 + H2SO4 → HCl
    • HCl + Base → Chloride


Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Chlorine, Hydrogen chloride ≧ 1/10 + Purple
Alcohols, Esters, Ketones No No
1,2-Dichloroethylene ≧ 1/10 + Purple
Trichloroethylene ≧ 1/10 + Purple
Tetrachloroethylene ≧ 1/10 + Purple
Aromatic hydrocarbons No No

Vinyl Chloride Detection Tubes (0.25 to 70 ppm)

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