Hydrogen Cyanide (HCN) Detection Tubes (17 to 2400 ppm)

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Item #: 12M
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$101.55 Was: $113.78
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Hydrogen Cyanide (HCN) Detection Tubes (17 to 2400 ppm)

Gastec Detection Tube No. 12M measures Hydrogen Cyanide with a Range of 17 to 2400 ppm.

  • Measuring Range:
    • 17 to 50 ppm
    • 50 to 800 ppm
    • j800 to 2400 ppm
  • Number of Pump Strokes: 2, 1, 1/2
  • Correction Factor: 1/3, 1, 3
  • Sampling Time: 1 minute per pump stroke
  • Detecting Limit: 1 ppm (2 pump strokes)
  • Changes from Yellow to Red
  • Corrections for temperature & humidity: Unnecessary
  • Reaction Principle:
    • 2HCN + HgCl2 → Hg(CN)2 + 2HCl
    • HCl + Base → Chloride
  • Relative Standard Deviation: 10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)
  • 3 Year Shelf Life
  • Store the tubes at cool and dark place.

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Hydrogen sulfide ≧ 500 ppm + Red
Sulfur dioxide ≧ 500 ppm + Red