Gastec รหัสสินค้าNo.9Lหลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Nitrogen dioxide,Meas.range:0.5～125ppm,Quantity:10pcs/Box

Nitrogen Dioxide (NO2) Detection Tubes (0.5 to 125 ppm)Gastec Detection Tube No. 9L measures Nitrogen Dioxide with a Range of 0.5 to 125 ppm.

• Measuring Range: 0.5 to 30 ppm, 30 to 125 ppm
• Number of Pump Strokes: 2, 1
• Correction Factor: 1, by scale
• Sampling Time: 30 seconds per pump stroke
• Detecting Limit: 0.1 ppm (2 pump strokes)
• Changes from White to Yellowish Orange
• Corrections for temperature & humidity: Unnecessary
• Reaction Principle: NO2 + o-Tolidine → Nitroso-o-Tolidine
• Relative Standard Deviation: 10% (for 0.5 to 10 ppm), 5% (for 10 to 30 ppm)
• 3 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