Gastec รหัสสินค้า No.135L หลอดวัดความเข้มข้นของแก๊ส,Detector Tubes For 1,1,1-Trichloroethane(Methyl chloroform),meas.range:6～900ppm,Quantity:5pcs/Box

1,1,1-Trichloroethane Detection Tubes (6 to 900 ppm)Gastec Detection Tube No.135L measures 1,1,1-Trichloroethane with a Range of 6-900 ppm.

• Measuring Range ( 1,1,1-Trichloroethane):
  • 6 to 20 ppm
  • 20 to 200 ppm
  • 200 to 900 ppm
• Number of Pump Stroke: 2, 1, 1/2
• Correction Factor: 0.3, 1, 4.5
• Sampling Time: 3 minutes per pump stroke
• Detecting Limit: 3 pp (2 pump strokes)
• Changes from White to Pale Pink
• Corrections for temperature & humidity: Temperature correction is necessary
• Reaction Principle:
  • CH3CCl3 + CrO3 + H2S2)7 → Cl2
  • Cl2 + 2,2',5,5'-Tetramethylbenzidine → Pale pink product
• Relative Standard Deviation: 10% (for 20 to 60 ppm), 5% (for 60 to 200 ppm)
• 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