Hydrogen Fluoride 0.25-100 ppm Detection Tubes

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Item #: 17
MFG: GasTec
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$77.32 Was: $88.06
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Product Details

Hydrogen Fluoride 0.25-100 ppm Detection Tubes

Performance

  • Detecting Limit: 0.1 ppm (7 pump strokes)
  • Color Change: Yellow to Brown (may produce "deep pink" color at higher concentration)
  • Corrections for temperature and humidity: Humidity correction is necessary
  • Relative Standard Deviation: 10% (for 0.5 to 5 ppm), 5% (for 5 to 20 ppm)
  • Shelf Life: 3 years
  • Reaction Principle: HF+ Indicator → Reaction Product

Measuring Range: 0.25 to 0.5 ppm 0.5 to 20 ppm 20 to 100 ppm
Number of Pump Strokes: 7 (700 ml) 4 (400 ml) 1 (100ml)
Correction Factor: 1/2 1 5
Sampling Time: 6 min 3 min 45 sec

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Chlorine ≧ 1/10 + Brown
Hydrogen chloride ≧ 1/5 + Brown
Nitric acid ≧ 1/5 + Brown
Nitrogen ≧ 1/10 + Brown

Other substances measurable with this detector tube:

Substance Correction Factor Pump Strokes Temperature Absolute Humidity Color Change
Fluorine 2.5 1 20°C(68°F) 9 mg/l Produces brown stain
1.0 1 20°C(68°F) 3 mg/l Produces a brown ring stain

Hydrogen Fluoride 0.25-100 ppm Detection Tubes

Reaction Principle:

HF + Indicator → Reaction product

Possible coexisting substances and their interferences:

Substance: Concentration: Interference: Changes Color by Itself to:
Chlorine ≧ 1/10 Brown
Hydrogen Chloride ≧ 1/5 Brown
Nitric Acid ≧ 1/5 Brown
Nitrogen Dioxide ≧ 1/10 Brown

Other substance measurable with this detector tube:

Substance: Fluorine Fluorine
Correction Factor: 2.5 1.0
Pump Strokes: 1 1
Temperature 20°C(68°F) 20°C(68°F)
Absolute Humidity 9 mg/l 3 mg/l
Color Change Produces brown stain Produces a brown ring stain

Hydrogen Fluoride 0.25-100 ppm Detection Tubes

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