Hydrogen Sulfide (H2S) Detection Tubes (0.1 to 4.0 ppm)

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Item #: 4LT
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$75.00 Was: $86.48
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Product Details

Hydrogen Sulfide (H2S) Detection Tubes (0.1 to 4.0 ppm)

Gastec Detection Tube No. 4LT measures Hydrogen Sulfide with a Range of 0.05 to 4.0 ppm.

  • Measuring Range:
    • 0.05 to 0.1 ppm
    • (0.1) to 2.0 ppm
    • 2.0 to 4.0 ppm
  • Number of Pump Strokes: 2, 1, 1/2
  • Correction Factor: 1/2, 1, 2
  • Sampling Time: 1.5 minute per pump strokes
  • Detecting Limit: 0.01 ppm (2 pump strokes)
  • Changes from Yellow to Pink
  • Corrections for temperature & humidity: Unnecessary
  • 2 Year Shelf Life (in the refrigerator)
  • Reaction Principle: Hydrogen sulfide reacts with the reagent to form intermediate material which stains indicator pink
  • Relative Standard Deviation: 5% (for 0.1 to 2 ppm)
  • Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.

Substance Concentration Interference Changes color by itself to
Ammonia ≧ 2.3 ppm - No
Ethyl mercaptan ≧ 0.5 ppm + Pink (≧ 0.4 ppm)
Hydrogen chloride ≧ 4.5 ppm + Pink (≧ 4.0 ppm)
Hydrogen cyanide ≧ 0.05 ppm + Pink (≧ 0.05 ppm)
Nitric acid ≧ 6.0 ppm + Pink (≧ 5.0 ppm)
Sulfur dioxide ≧ 10 times + (Two layers) Pale pink (≧ 2.0 ppm)
Nitrogen dioxide ≧ 5 times - Pink (≧ 6.5 ppm)
Hydrogen fluoride ≧ 12.0 ppm + Pink (≧ 11.0 ppm)

Hydrogen Sulfide (H2S) Detection Tubes (0.1 to 4.0 ppm)

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