Gastec รหัสสินค้าNo.7Jหลอดวัดความเข้มข้นของแก๊ส,Detector Tube For Phosphine,Meas.range:2.5～1,000ppm,Quantity:10pcs/Box

Phosphine (PH3) Detection Tubes (2.5 to 1000 ppm)Gastec Detection Tube No. 7J measures Phosphine with a Range of 2.5 to 1000 ppm.

• Measuring Range:
  • 2.5 to 25 ppm
  • (25) to 500 ppm
  • 500 to 1000 ppm
• Number of Pump Strokes: 2 to 10, 1, 1/2
• Correction Factor: 1/2 to 1/10, 1, 2
• Sampling Time: 1 minute per pump stroke
• Detecting Limit: 1 ppm (10 pump strokes)
• Changes from White to Pale Yellow
• Corretions for temperature & humidity: Unnecessary
• Reaction Principle: 2PH3 + 6HgCl2 + 3H2O → Hg3P2･3HgCl2･3H2O + 6HCl
• Relative Standard Deviation: 10% (for 2.5 to 100 ppm), 5% (for 100 to 500 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