Hydrogen Fluoride Detection Tubes (0.09 to 72 ppm)
Gastec Detection Tube No. 17L measures Hydrogen Fluoride with a Range of 0.09 to 72 ppm.
- Measuring Range:
- 0.09 to 0.2 ppm
- 0.2 to 10 ppm
- 10 to 72 ppm
- Number of Pump Strokes: 5, 3, 1
- Correction Factor: 0.45, 1, 7.2
- Sampling Time: 1 minute per pump stroke
- Detecting Limit: 0.05 ppm (5 pump strokes)
- Changes from Yellow to Brown
- Corrections for temperature & humidity: Humidity correction is necessary
- Reaction Principle: HF + Indicator → Reaction product
- Relative Standard Deviation: 10% (for 0.2 to 2 ppm), 5% (for 2 to 10 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 |
Nitric acid |
≧ 1/5 |
+ |
Reddish purple |
Hydrogen chloride |
≧ 1/2 |
+ |
Reddish purple |
Nitrogen dioxide |
|
No |
No |
Hydrogen Fluoride Detection Tubes (0.09 to 72 ppm)
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