Gastec No.136Lหลอดวัดความเข้มข้นของแก๊ส, Gas Detector Tube for Methyl bromide,Meas.range:2.5～200ppm,Quantity:5Pcs/Box

Methyl Bromide Detection Tubes (10 to 100 ppm)Gastec Detection Tube No. 136L measures methyl Bromide with a range of 2.5 to 200 ppm.

• Measuring Range: 2.5 to 10 ppm, 10 to 100 ppm, 100 to 200 ppm
• Number of Pump Strokes: 4, 1, 1/2
• Correction Factor: 1/4, 1, 2
• Sampling Time: 1.5 minutes per pump stroke
• Detecting Limit: 0.5 ppm (4 pump strokes)
• Reaction Principle:
  • CH3Br + I2O5+ H2S2O7 → Br2
  • Br2 + O-Tolidine → Yellow product
• Corrections for temporary & humidity: Unnecessary
• Relative Standard Deviation: 10% (for 10 to 20 ppm), 5% (for 20 to 100 ppm)
• Changes from White to Yellow
• 2 Year Shelf Life
• 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