| Measuring Range |
| 0.05 to 3.0 ppm |
3.0 to 6.9 ppm |
6.9 to 24 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1 minute per pump stroke |
| Detecting Limit |
0.025 ppm (n=5) |
| Colour Change |
Yellow → Brown |
| Reaction Principle |
Hydrogen fluoride reacts with indicator to produce brown stain. |
| Coefficient of Variation |
10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary
Humidity correction is necessary |
| Store the tubes at cool and dark place. |
1.0ppm 
