Ethyl Mercaptan - 0.5 to 120 ppm Detection Tubes

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Item #: 72
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$82.69 Was: $92.36
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Product Details

Ethyl Mercaptan - 0.5 to 120 ppm Detection Tubes

  • Detecting Limit: 0.2 ppm (10 pump strokes)
  • Color Change: White to Yellow
  • Corrections for temperature & humidity: Temperature correction is necessary
  • Relative standard deviation: 10% (for 5 to 40 ppm), 5% (for 40 to 120 ppm)
  • Shelf Life: 3 years
  • Reaction Principle: 2C2H5SH + PdSO4 → (C2H5S)2Pd + H2SO4

Perfrormance:

Measuring Range: 0.5 to 5 ppm 5 to 120 ppm
Number of pump strokes: 2 to 10 (200 to 1000 ml) 1 (100 ml)
Correction Factor: 1/2 to 1/10 1
Sampling Time: 4 to 20 min 2 min

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Acetylene ≧ 2000 ppm + Pale brown (whole layer)
Carbon monoxide ≧ 2000 ppm + Pale (whole layer)
Ethylene ≧ 2000 ppm + Pale brown (whole layer)
Hydrogen sulfide ≧ 500 ppm + No
Mercaptans + Yellow
Up to 500 ppm of hydrogen sulfide is trapped in the pretreatment (white) layer.

Ethyl Mercaptan - 0.5 to 120 ppm Detection Tubes

Reaction Principle:

2C2H5SH + PdSO4 to (C2H5S)2Pd + H2SO4

Possible Coexisting Substances And Their Interference:

Substance: Concentration: Interference: Changes Color By Itself To:
Acetylene ≧ 2000 ppm + Pale Brown (Whole Layer)
Carbon Monoxide ≧ 2000 ppm + Pale Brown (Whole Layer)
Ethylene ≧ 2000 ppm + Pale Brown (Whole Layer)
Hydrogen Sulphide ≧ 500 ppm + NO
Mercaptans X + Yellow

Ethyl Mercaptan - 0.5 to 120 ppm Detection Tubes

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