Aromatic Hydrocarbons Detection Tubes (120 - 0.4 to 200 ppm)

Aromatic Hydrocarbons Detection Tubes (120 - 0.4 to 200 ppm)

Gastec Detector Tube No 120 is used for the detection and monitoring of Aromatic Hydrocarbons.

• Measuring Range:
  • 0.4 to 2 ppm - 2 to 5 pump strokes
    Correction Factor: 1/2 to 1/5
  • 2 to 100 ppm - 1 pump stroke
    Correction Factor: 1
  • 100 to 200 ppm - 1/2 pump stroke
    Correction Factor: 2
• Sampling Time: 1.5 minutes per pump stroke
• Detecting limit: 0.2 ppm (5 Pump Strokes)
• Changes from White to Brown
• Corrections for temperature & humidity: Unnecessary
• Relative Standard Deviation: 10% (for 2 to 20 ppm), 5% (for 20 to 100 ppm)
• 3 Year Shelf Life
• Reaction Principle: Aromatic Hydrocarbons + I₂O₅ + H₂SO₄ → I₂