Acrylonitrile Detection Tubes (2 to 360 ppm)

There are no reviews yet. | Write a review
Item #: 191
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$94.86
View additional buying options
Product Details

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.

Possible coexisting substances ad their interferences:

Substance Concentration Interference Changes color by itself to
Acetone cyanohydrin ≧ 10 ppm + Red
Nitriles (≧ C3) ≧ 10 ppm + Red
Alcohols, Esters, Ketones No No
Aromatic hydrocarbons No No
Hydrogen Chloride No No
Hydrogen cyanide No No

Other substance measurable with this detector tube:

Substance Concentration No. of Pump Strokes Measuring Range
Propionitrile Factor: 10 4 50 to 1200 ppm

Acrylonitrile Detection Tubes (2 to 360 ppm)

There are no reviews yet.