Gastec รหัสสินค้าNo.11HAหลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Nitrogen oxides,Meas.range:50～2500ppm ,Quantity:10pcs/Box

Nitrogen Oxides Detection Tubes (50 to 2500 ppm)Gastec Detection Tube No. 11HA measures Nitrogen Oxides with a Range of (50) to 2500 ppm.

• Measuring Range: (50) to 2500 ppm
• No. of Pump Strokes: 1 (100 ml)
• Correction Factor: 1
• Sampling time: 1.5 minutes per pump stroke
• Detecting Limit: 10 ppm (1 pump stroke)
• Changes from White to Green
• Corrections for temperature & humidity: Unnecessary
• Reaction Principle:
  • NO + Cr6+ + H2SO4 → NO2
  • NO2 + (C6H5)2NH → C6H5NHC6H4NO
• Relative Standard Deviation: 10% (for 50 to 600 ppm), 5% (for 600 to 2500 ppm)
• 2 Year Shelf Life
• Store the tubes at cool and dark place.

• 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