Hydrogen Cyanide (HCN) Detection Tubes (0.2 to 7 ppm)

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Item #: 12LL
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$95.57 Was: $102.65
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Product Details

Hydrogen Cyanide (HCN) Detection Tubes (0.2 to 7 ppm)

Gastec Detection Tube No. 12LL measures Hydrogen Cyanide with a Range of 0.2 to 100 ppm.

  • Measuring Range:
    • 0.2 to 5 ppm
    • 5 to 10 ppm
  • Number of Pump Strokes: 2, 1
  • Correction Factor: 1, 2
  • Sampling Time: 1.5 minutes per pump stroke
  • Detecting Limit: 0.05 ppm (2 pump strokes)
  • Changes from Yellow to Pink
  • Corrections for temperature & humidity: Unnecessary
  • Reaction Principle:
    • Hydrogen Cyanide reacts with the reagent to form intermediate material which stains indicator pink .
  • Relative Standard Deviation: 5% (for 0.2 to 5 ppm)
  • 2 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
Ammonia ≧ 2.2 ppm - No
Hydrogren chloride ≧ 1.6 ppm + Pink (≧ 2.0 ppm)
Nitric acid ≧ 2.0 ppm + Pink (≧ 3.0 ppm)
Sulfur dioxide ≧ 0.5 ppm + Pink (≧ 0.6 ppm)
Nitrogen dioxide ≧ 5.0 ppm + Pale pink (≧ 5.5 ppm)
Hydrogen fluoride ≧ 10.0 ppm + Pink (≧ 15.0 ppm)
Hydrogen sulfide + Pink

Hydrogen Cyanide (HCN) Detection Tubes (0.2 to 7 ppm)

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