Gastec รหัสสินค้า No.120 หลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Aromatic hydrocarbon,Meas.range:0.4～200ppm,(10pcs/Box)

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

• On-site measurements can be performed easily by anybody, anytime and anywhere, in a short time
• Easy-to-check direct reading possible due to calibrated scale directly printed on the tube
• An extensive measuring range can be obtained by adjusting the sampling volume
• In order to assure high precision, each production lot is tested and calibrated independently, Each detector tube has its own quality control number printed on the tube
• Long shelf-life with excellent long-term stability