Item #: 11S
MFG: GasTec
UOM:Box of 10
$92.25 Was: $98.92
$92.25

Nitrogen Oxides Detection Tubes (5 to 625 ppm)

11S | Measures Nitrogen Oxides With a Range of 5-625 ppm.

  • Number of Pump Strokes: 2, 1, 1/2
  • Correction Factor: 1/2, 1, 2.5
  • Sampling Time: 45 seconds per pump stroke
  • Detecting Limit: 2 ppm (n=2)
  • Changes from White to Pale Green
  • Reaction Principle:
    • NO + Cr6+ + H2SO4 →NO2 NO2 + (C6H5)2NH ¨ Pale green product
  • Coefficient of Variation: 10% (for 10 to 40 ppm), 5% (for 40 to 250 ppm)
  • 2 Year Shelf Life
  • TLV-TWA, C (ACGIH) (ppm):
    • NO2: 3 ppm NO: 25 ppm
  • Store the tubes at cool and dark place.
  • Comes in a Box of 10