Ammonia (NH3) Detection Tubes (2.5 to 200 ppm)

Ammonia (NH3) Detection Tubes (2.5 to 200 ppm)

Gastec Detector Tube No 3LA is used for the detection of Ammonia in air or the industrial areas and environmental atmospheric condition.

• Measuring Range:
  • 2.5 to 5 ppm - 2 pump strokes
    Correction Factor: 2
  • 5 to 100 ppm - 1 pump stroke
    Correction Factor: 1
  • 100 to 200 ppm - 1/2 pump stroke
    Correction Factor: 2
• Sampling Time: 30 seconds per pump stroke
• Detecting limit: 0.5 ppm (2 pump strokes)
• Changes from Purple to Yellow
• Corrections for termperature & humidity: Temperature correction is necessary
• Relative Standard Deviation: 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)
• 3 Year Shelf Life
• Reaction Principle: 3NH₃ + H₃PO₄ → (NH₄)₃PO₄
• Store the tubes at a cool and dark place.

Possible coexisting substances and their interferences