Aniline Detection Tubes (1.25 to 60 ppm)

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Item #: 181
MFG: GasTec

UOM: Box of 10

$92.81 Was: $99.56
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Aniline Detection Tubes (1.25 to 60 ppm)

Gastec Detector Tube No 181 measures Aniline.

  • Measuring Range:
    • 1.25 to 2.5 ppm - 5 pump strokes
      Correction Factor: 1/2
    • 2.5 to 30 ppm - 3 pump strokes
      Correction Factor: 1
    • 30 to 60 ppm - 2 pump strokes
      Correction Factor: 2
  • Sampling Time: 1 minute per pump stroke
  • Changes from Pale Yellow to Pale Green
  • Corrections for termperature & humidity: Unnecessary
  • Relative Standard Deviation: 10% (for 2.5 to 10 ppm), 5% (for 10 to 30 ppm)
  • 3 Year Shelf Life
  • Reaction Principle: C6H5NH2 + Cr6+ → Cr3+
  • Store the tubes at a cool and dark place.

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Aromatic amines + Pale Green
Ammonia ≧ 1/10 + No
Other amines ≧ 1/10 + No

Other substance measurable with this detector tube:

Substance: Correction Factor: No. of Pump Strokes: Measuring Range:
N,N-Dimethylaniline Factor:1.0 3 2.5 to 30 ppm
N-methylaniline Factor:1.4 2 3.5 to 42 ppm
o-Toluidine Factor: 2.0 2 5 to 60 ppm