1,1,1-Trichloroethane Detection Tubes (6 to 900 ppm)

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Item #: 135L
MFG: GasTec

UOM: Box of 10

$88.43 Was: $97.59
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1,1,1-Trichloroethane Detection Tubes (6 to 900 ppm)

Gastec Detection Tube No. 135L measures 1,1,1-Trichloroethane with a Range of 6-900 ppm.

  • Measuring Range ( 1,1,1-Trichloroethane):
    • 6 to 20 ppm
    • 20 to 200 ppm
    • 200 to 900 ppm
  • Number of Pump Stroke: 2, 1, 1/2
  • Correction Factor: 0.3, 1, 4.5
  • Sampling Time: 3 minutes per pump stroke
  • Detecting Limit: 3 pp (2 pump strokes)
  • Changes from White to Pale Pink
  • Corrections for temperature & humidity: Temperature correction is necessary
  • Reaction Principle:
    • CH3CCl3 + CrO3 + H2S2)7 → Cl2
    • Cl2 + 2,2',5,5'-Tetramethylbenzidine → Pale pink product
  • Relative Standard Deviation: 10% (for 20 to 60 ppm), 5% (for 60 to 200 ppm)
  • 2 Year Shelf Life
  • Store the tubes at cool and dark place.
  • Comes in a Box of 5 pre tubes and 5 detector tubes

Possible coexisting substances and their interferences:

Substance Interference Changes color by itself to
Halogens + Pale pink
Nitrogen oxides + Pale pink
Saturated halogenated hydrocarbons + Pale pink

Other substance measurable with this detector tube:

Substance: Correction Factor: No. of Pump Strokes: Measuring Range:
1,2-Dichloroethane 5.2 1 104 to 1040 ppm
1,1,2,2-Tetrabromoethane 0.046 4 0.92 to 9.2 ppm
1,2,3-Trichloropropane 1.8 4 36 to 360 ppm