Gastec รหัสสินค้า No.4LB หลอดวัดความเข้มข้นของแก๊ส,Gas detector tube for hydrogen sulphide(H2S),meas.range:0.5～12ppm,Quatity:10pcs/Box

Hydrogen Sulfide (H2S) Detection Tubes (0.5 to 12 ppm)Gastec Detection Tube No. 4LB measures Hydrogen Sulfide with a Range of 0.5 to 12 ppm.

• Measuring Range:
  • 0.5 to 1 ppm
  • 1 to 6 ppm
  • 6 to 12 ppm
• Number of Pump Strokes: 2, 1, 1/2
• Correction Factor: 1/2, 1, 2
• Sampling Time: 1 minute per pump stroke
• Detecting Limit: 0.07 ppm (2 pump strokes)
• Corrections for temperature & humidity: unnecessary
• Changes from Yellow to Pink
• Reaction Principle:
  • Hydrogen sulfide reacts with the reagent to form intermediate material which stains indicator pink.
• Relative Standard Deviation: 5% (for 1 to 6 ppm)
• 2 Year Shelf Life

• 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