Gastec รหัสสินค้าNo.7Lหลอดวัดความเข้มข้นของแก๊ส,Detector Tube for Phosphine,Meas.range:0.15～5ppm,Quantity:10pcs/Box

Phosphine (PH3) Detection Tubes ( 0.15 to 5 ppm)Gastec Detection Tube No. 7L measures Phosphine with a Range of 0.15 to 5 ppm.

• Measuring Range: 0.15 to 0.3 ppm, 0.3 to 5 ppm
• No. of Pump Strokes: 10, 5
• Correction Factor: 1/2, 1
• Sampling Time: 1 minute per pump stroke
• Detecting Limit: 0.04 ppm (10 pump strokes)
• Changes from Pale Yellow to Purple
• Corrections for temperature & humidity: Unnecessary
• Reaction Principle: PH3 + Gold-compound → Colloidal gold
• Relative Standard Deviation: 10% (for 0.3 to 1 ppm), 5% (for 1 to 5 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