Gastec รหัสสินค้า No.172 หลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Ethylene,Meas.range:32.5～1,040ppm,(10pcs/Box)

Ethylene Detection Tubes (25 to 1680 ppm)Measures Ethylene with a Range of 25 to 1680ppm. 

• Measuring Range: 25 to 800 ppm, 800 to 1680 ppm
• Number of Pump Strokes: 1 (100 ml), 1/2 (50 ml)
• Correction Factor: 1, 2.1
• Sampling Time: 3 minutes, 1.5 minutes
• Detecting Limit: 5 ppm (1 pump stroke)
• Changes from Pale Yellow to Blue
• Reaction Principle: CH2:CH2 + (NH4)2MoO4 + PdSO4 → Molybdenum blue
• Relative Standard Deviation: 10% (for 25 to 200 ppm), 5% (for 200 to 800 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