Gastec รหัสสินค้าNo.136LLหลอดวัดความเข้มข้นของแก๊ส,Detector Tube For Methyl bromide,Meas.range:0.1～3.0ppm,Quantity:5pcs/Box

Methyl Bromide Detection Tubes (0.1 to 3.0 ppm)Gastec Detection Tube No. 136LL measures Methyl Bromide with a Range of 0.1 to 3.0 ppm.

• Measuring Range: 0.1 to 1.2 ppm, 1.2 to 3.0 ppm
• Number of Pump Strokes: 2, 1
• Correction Factor: 1, 2.5
• Sampling Time: 2 minutes per pump stroke
• Detecting Limit: 0.02 ppm (2 pump strokes)
• Changes from White to Pale Purple
• Corrections for temperature & humidity: Temperature correction is necessary
• Relative Standard Deviation: 10% (for 0.1 to 0.4 ppm), 5% (for 0.4 to 1.2 ppm)
• 2 Year Shelf Life
• Reaction Principle:
  • CH3Br + CrO3 + H2S2O7 → Br2
  • Br2 + 3,3'-Dimethylnaphthidine → reaction 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