Gastec รหัสสินค้าNo.136Hหลอดวัดความเข้มข้นของแก๊ส,Gas Detector Tube for Detector,Meas.range:14～210ppm,Quantity:10pcs/Box

Methyl Bromide Detection Tubes (10 to 600 ppm) 136H | Measures Methyl Bromide With a Range of 10-600 ppm.Other substances measurable with this detection tube are Chlorobromomethane, 1,2-Dibromoethane, n-Butyl Bromide (See table below for their information).Methyl Bromide

• Measuring Range: 10 to 600ppm
• Number of Pump Strokes: 2, 1, 1/2
• Correction Factor: 1/2, 1, 2
• Sampling Time: 1.5 minutes per pump stroke
• Detecting Limit: 4 ppm (n=2)
• Reaction Principle:
  • 2CH3Br +I2O5+ H2S2O7 → Br 2 Br 2 +O-Tolidine → Yellow product
• Coefficient of Variation: 10% (for 20 to 100 ppm), 5% (for 100 to 300 ppm)
• Changes from White to Yellow
• 3 Year Shelf Life
• TLV-TWA, C (ACGIH) (ppm): 1
• 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