Formaldehyde Detection Tubes (2 to 100 ppm)

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Item #: 91
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$82.45 Was: $91.22
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Product Details

Formaldehyde Detection Tubes (2 to 100 ppm)

Formaldehyde with a Range of 2 to 100 ppm.

  • Measuring Range:
    • 2 to 20 ppm
    • 20 to 50 ppm
    • 50 to 100 ppm
  • Number of Pump Strokes: 2, 1, 1/2
  • Correction Factor: 1, 2.5, 5
  • Sampling Time: 45 seconds per pump stroke
  • Detecting Limit: 0.5 ppm (2 pump strokes)
  • Changes from White to Brown
  • Reaction Principle: HCHO + C6H4(CH3)2 + H2S2O7 → Condensation Polymer
  • Relative Standard Deviation: 15% (for 2 to 6 ppm), 10% (for 6 to 20 ppm)
  • 3 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 Concentration Interference Changes color by itself to
Aldehydes ≧ 1/2 + Brown
Styrene ≧ 500 ppm + Yellow
Esters, Ethers, Ketones ≧ 1000 ppm + No

Formaldehyde Detection Tubes (2 to 100 ppm)

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