Gastec รหัสสินค้าNo.111Lหลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Methanol,Meas.range:20～1000ppm ,Quantity:10pcs/Box

Methanol Detection Tubes (20 to 1000 ppm)Gastec Detection Tube No.111L measures Methanol with a Range of 20 to 1000 ppm.

• Measuring Range: 20 to 40 ppm, 40 to 1000 ppm
• Number of Pump Strokes: 2, 1
• Correction Factor: 1/2, 1
• Sampling Time: 2 minutes per pump stroke
• Detecting Limit: 15 ppm (2 pump strokes)
• Reaction Principle: CH3OH + Cr6+ + H2SO4 → Cr3+
• Coefficient of Variation: 15% (for 40 to 200 ppm), 10% (for 200 to 1000 ppm)
• Changes from Pale vermilion to Pale Blue
• 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