Gastec รหัสสินค้าNo.72Lหลอดวัดความเข้มข้นของแก๊ส,Detector Tube For Ethyl mercaptan,Meas.range:0.2～75ppm,Quantity:10pcs/Box

Ethylene Detection Tubes (0.2 to 50 ppm)Gastec Detection Tube No. 172L measures Ethylene with a Range of 0.2 to 100 ppm.

• Measuring Range: 0.2 to 50 ppm, 50 to 100 ppm
• Number of Pump Strokes: 4, 2
• Correction Factor: 1, 2
• Sampling time: 2 minutes per stroke
• Detecting Limit: 0.05 ppm (4 pump strokes)
• Changes from Pale Yellow to Blue
• Reaction Principle: CH2:CH2 + (NH4)2MoO4 + PbSO4 → Molybdenum blue
• Relative Standard Deviation: 10% (for 0.2 to 10 ppm), 5% (for 10 to 50 ppm)
• 3 Year Shelf Life
• 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