Gastec รหัสสินค้าNo.113LLหลอดวัดความเข้มข้นของแก๊ส,Gas Detector Tube Isopropyl alcohol,Meas.range:20～440ppm,Quantity:10pcs/Box

Isopropyl Alcohol Detection Tubes (20 to 440 ppm)Gastec Detection Tube No. 113LL measures Isopropyl Alcohol with a Range of 20 to 460 ppm

• Measuring Range: 20 to 200 ppm, 300 yo 460 ppm
• Number of Pump Strokes: 2, 1
• Correction Factor: 1, 2.3
• Sampling Time: 2 minutes per pump stroke
• Detecting Limit: 7 ppm (2 pump strokes)
• Changes from Pale vermilion to Pale blue
• Corrections for temperature & humidity: Temperature correction is necessary
• Reaction Principle: CH3CH(OH)CH3 + Cr6+ + H2SO4 → Cr3+
• Relative Standard Deviation: 10% (for 20 to 60 ppm), 4% (for 60 to 200 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