Sulfur Dioxide (SO2) Detection Tubes (0.5 to 60 ppm)

There are no reviews yet. | Write a review
Item #: 5La
MFG: GasTec

UOM: Box of 10

$85.35 Was: $96.91
View additional buying options

Sulfur Dioxide (SO2) Detection Tubes (0.5 to 60 ppm)

Gastec Detection Tube No. 5L1 measures Sulfur Dioxide with a Range of 0.5 to 60 ppm.

  • Measuring Range:
    • 0.5 to 1 ppm
    • 1 to 2 ppm
    • 2 to 30 ppm
    • 30 to 60 ppm
  • Number of Pump Strokes: 8, 4, 2, 1
  • Correction Factor: 1/4, 1/2, 1, 2
  • Sampling Time: 1 minute per pump stroke
  • Detecting Limit: 0.1 ppm (8 pump strokes)
  • Color Change: Blue → Yellow
  • Corrections for temperature & humidity: Unnecessary
  • Reaction Principle:
    • SO2 + BaCl2 + H2O → BaSO3 + 2HCl
    • HCl + Base → Chloride
  • Relative Standard Deviation: 10% (for 2 to 10 ppm), 5% (for 10 to 30 ppm)
  • 3 Year Shelf life
  • Store the tubes at cool and dark place.

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Nitrogen dioxide ≧ 1/1 + Pale purple
Carbon monoxide No No
Hydrogen sulfide No No
Nitric oxide No No
Carbon dioxide 100 % Unclear demarcation Unclear demarcation at 100 %

Other substance measurable with this detector tube:

Substance: Correction Factor: No of Pump Strokes: Measuring Range:
Thionyl chloride 0.72 2 1.44 to 21.6 ppm