Hydrogen Fluoride Detection Tubes (0.05 to 24 ppm)
Gastec Detection Tube No. 17LL measures Hydrogen Fluoride with a Range of (0.05) to 24 ppm.
- Measuring Range:
- (0.05) to 3.0 ppm
- 3.0 to 6.9 ppm
- 6.9 to 24 ppm
- Number of Pump Strokes: 5, 3, 1
- Correction Factor: 1, 2.3, 8.0
- Sampling Time: 1 minute per pump stroke
- Detecting Limit: 0.025 ppm (5 pump strokes)
- Changes from Yellow to Brown
- Corrections for temperature & humidity: Both temperature & humidity correction is necessary
- Reaction Principle: HF + Indicator → Reaction product
- Relative Standard Deviation: 10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 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 |
≧ 1.0 ppm |
+ |
Pale reddish purple |
| Hydrogen chloride |
≧ 0.1 ppm |
+ |
Reddish purple |
| Hydrogen peroxide |
10 ppm |
No |
No |
Hydrogen Fluoride Detection Tubes (0.05 to 24 ppm)
There are no reviews yet.