Gastec รหัสสินค้าNo.191หลอดวัดความเข้มข้นของแก๊ส,Detector Tube For Acrylonitrile,Meas.range:2～360ppm,Quantity:10pcs/Box

Acrylonitrile Detection Tubes (2 to 360 ppm) Gastec Detector Tube No 191 is used for the detection of Acrylonitrile in the air of industrial areas and in environmental atmospheric conditions. 

• Measuring Range:
  • 2 to 5 ppm - 4 pump strokes - Correction Factor is 0.4
  • 5 to 120 ppm - 2 pump strokes - Correction Factor is 1
  • 120 to 360 ppm - 1 pump stroke - Correction Factor is 3
• Sampling Time: 45 seconds per pump stroke
• Detecting limit: 1 ppm (4 pump strokes)
• Changes from Yellow to Red
• Corrections for temperature & humidity: Temperature correction is necessary
• Relative Standard Deviation: 10% (for 5 to 40 ppm), 5% (for 40 to 120 ppm)
• 3 Year Shelf Life
• Reaction Principle:
  • CH2:CHCN + Cr 6+ + H2SO4 → HCN
  • 2HCN + HgCl2 → 2HCl
  • HCl + Base → Chloride
• Store the tubes at a 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

TUBE NAME	Acrylonitrile
CHEMICAL FORMULA	CH2:CHCN
MEASURING RANGE	2-360ppm
NO. TESTS PER BOX	5
STORAGE	Store tubes in a cool dark place
TUBE NUMBER	191