Gastec รหัส No.2HH หลอดวัดความเข้มข้นของแก๊ส,Gas Detector Tube for Carbon dioxide,Meas.range:2.5～40%ppm,Quantity:10pcs/Box

Carbon Dioxide (CO2) Detection Tubes (2.5 to 40%)Measures Carbon Dioxide with a Range of 2.5%-40% ppm.

• Measuring Range:
  • 2.5 to 5%
  • 5 to 40%
• Number of Pump Strokes: 1, 1/2 (50 mL)
• Correction Factor: 1/2, 1
• Sampling Time: 45 seconds
• Detecting Limit: 0.04% (n=1)
• Changes from Orange to Yellow
• Reaction Principle: CO2 + N2H4 → NH2NHCOOH
• Coefficient of Variation: 10% (for 5 to 10 %), 5% (for 10 to 40 %)
• 3 Year Shelf Life
• TLV-TWA, C (ACGIH) (ppm): 5000
• Store the tubes at cool and dark place.
• Comes in a Box of 10

• 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