Petroleum Naphtha Detection Tubes (0.5 to 28 mg/l)

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Item #: NXT-106
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$100.85 Was: $107.82
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Product Details

Petroleum Naphtha Detection Tubes (0.5 to 28 mg/l)

Gastec Detection Tube No. 5LC measures Sulfur Dioxide with a Range of 0.1 to 25 ppm.

  • Measuring Range:
    • 0.5 to 1 mg/l
    • 1 to 14 mg/l
    • 14 to 28 mg/l
  • No. of Pump Strokes: 2, 1, 1/2
  • Correction Factor: 1/2, 1, 2
  • Sampling time: 45 seconds per pump stroke
  • Detecting Limit: 0.1 mg/l (2 pump strokes)
  • Color Change: Yellowish brown to Greenish brown
  • Corrections for temperature & humidity: Unnecessary
  • Reaction principle: Petroleum naphtha + Cr6+ + H2SO4 → Cr3+
  • Relative Standard Deviation: 10 % (for 1 to 4 mg/l), 5 % (for 4 to 14 mg/l)
  • 3 Year Shelf Life
  • Store the tubes at a cool and dark place.

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Acetylene ≧ 3 % + Blackish brown (whole layer)
Propane ≧ 0.2 % + Blackish brown (whole layer)
Hydrogen sulfide ≧ 500 ppm + Blackish brown
Organic solvents + Greenish brown
Sulfur dioxide ≧ 500 ppm + Green

Other substance measurable with this detector tube:

Substance: Correction Factor: No of Pump Strokes: Measuring Range:
mg/l
Petroleum benzine 2
1
0.5
1/2
1
2
14 to 28
1 to 14
0.5 to 1
Petroleum ether 2
1
0.5
1/2
1
2
14 to 28
1 to 14
0.5 to 1

Petroleum Naphtha Detection Tubes (0.5 to 28 mg/l)

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