Nitrogen Oxides Detection Tubes (0.04 to 16.5 ppm)

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Item #: 11L
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$75.28 Was: $85.28
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Product Details

Nitrogen Oxides Detection Tubes (0.04 to 16.5 ppm)

Gastec Detection Tube No. 11L measures Nitrogen Oxides with a Range of 0.04 to 16.5 ppm.

  • Measuring Range:
    • 0.04 to 0.08 ppm
    • 0.08 to 0.2 ppm
    • 0.2 to 5.0 ppm
    • 5.0 to 16.5 ppm
  • Number of Pump Strokes: 8, 4, 2, 1
  • Correction Factor: 0.2, 0.4, 1, 3.3
  • Sampling Time: 2 minutes per pump stroke
  • Detecting Limit: 0.01 ppm (8 pump strokes)
  • Reaction Principle:
    • NO + Cr6+ + H2SO4 → NO2
    • NO2 + o-Tolidine → Nitroso-o-Tolidine
  • Corrections for Temperature & Humidity: Unnecessary
  • Relative Standard Deviation: 10% (for 0.2 to 1 ppm), 5% (for 1 to 5 ppm)
  • Shelf Life: 3 years
  • Changes from White to Yellowish Orange
  • 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
Bromine, Chlorine + Yellowish orange
Chlorine dioxide + Yellowish orange
Hydrogen sulfide ≧ 25 ppm - No
Sulfur dioxide ≧ 25 ppm - No

Nitrogen Oxides Detection Tubes (0.04 to 16.5 ppm)

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