Gastec รหัสสินค้าNo.137หลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Chloroform,Meas.range:4～400ppm,Quantity:5pcs/Box

Chloroform Detection Tubes (4 to 400 ppm)Measures Chloroform with a range of 4-400 ppm.

• Measuring Range:
  • 4 to 10 ppm
  • 10 to 100 ppm
  • 100 to 400 ppm
• Number of Pump Strokes: 7, 5, 3
• Correction Factor: 0.4, 1, 4
• Sampling Time: 1.5 minutes per pump stroke
• Detecting Limit: 1 ppm (7 pump strokes)
• Changes from White to Orange
• Corrections for temperature & humidity: Humidity correction is necessary
• Relative Standard Deviation: 15% (for 10 to 20 ppm), 10% (for 20 to 100 ppm)
• 3 Year Shelf Life
• Reaction Principle:
  • CHCl3 + I2O5 + H2S2O7 → Cl2
  • Cl2 + o-Tolidine → Orange product
• Store the tubes at cool and dark place.
• Comes in a Box of 5 pre tubes and 5 detector tubes

• 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