Ammonia (NH3) Detection Tubes (10 to 1000 ppm)

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Item #: 3M
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$80.95 Was: $91.91
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Ammonia (NH3) Detection Tubes (10 to 1000 ppm)

This detector tubes measures Measures Ammonia. Other substance measurable with this detector tube is: Trimethylamine With a Range of 25-250 ppm (1 stroke).

  • Measuring Range:
    • 10 to 50 ppm - 2 to 5 pump strokes - Correction Factor: 1/2 to 1/5
    • 50 to 500 ppm - 1 pump stroke - Correction Factor: 1
    • 500 to 1000 ppm - 1/2 pump stroke - Correction Factor: 2
  • Sampling Time: 45 seconds per pump stroke
  • Changes from Purple to Yellow
  • 3 Year Shelf Life
  • Corrections for temperature & humidity: Unnecessary
  • Relative Standard Deviation: 5% (for 50 to 500 ppm)
  • Reaction Principle: 3NH3 + H3PO4 → (NH4)3PO4
  • Store the tubes in a dark and cool place.

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Diamines ≧ 1/8 + Yellow
Monoamines ≧ 1/15 + Yellow
Carbon dioxide ≧ 1% - (20%) No

Other substance measurable with this detector tube:

Substance Correction No. of Pump Strokes Measuring Range
Trimethylamine Factor: 0.5 1 25 to 250 ppm