Phosphine (PH3) Detection Tubes (200 to 5500 ppm)

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Item #: 7H
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$92.80 Was: $99.57
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Product Details

Phosphine (PH3) Detection Tubes (200 to 5500 ppm)

Gastec Detection Tube No. 7H measures Phosphine with a Range of 200 to 5500 ppm.

  • Measuring Range: 200 to 2500 ppm, 2500 to 5500 ppm
  • Number of Pump Strokes: 1, 1/2
  • Correction Factor: 1, 2.2
  • Sampling Time: 1 minute per pump stroke
  • Detecting Limit: 5 ppm (1 pump stroke)
  • Changes from Yellow to Blackish brown
  • Corrections for temperature & humidity: Temperature correction is necessary
  • Reaction Principle: PH3 + Na2Pd (SO3)2 ➝ Pd
  • Relative Standard Deviation: 10% (for 200 to 800 ppm), 5% (for 800 to 2500 ppm)
  • 2 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
Ammonia ≦ 2500 ppm No No
Carbon monoxide + Blackish brown from 5 ppm
Carbon dioxide ≦ 2% No No

Phosphine (PH3) Detection Tubes (200 to 5500 ppm)

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