Indicator: 1~10ppm
Measuring Range: 0.5 to 10 ppm, Number of Pump Strokes 5
Sampling Time: 45 second per pump stroke
Colour Change: White → Yellow
Reaction Principle: H2O2 + TiSO4 → Yellow Product
Coefficient of Variation: 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
0.5 to 10 ppm |
| Number of Pump Strokes |
5 |
| Correction Factor |
1 |
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
0.1 ppm (n=5) |
| Colour Change |
White → Yellow |
| Reaction Principle |
H2O2 + TiSO4 → Yellow Product |
| Coefficient of Variation |
10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Chlorine |
|
No |
No |
| Ozone |
|
No |
No |
| Nitrogen dioxide |
|
No |
No |
| Acetaldehyde |
50 ppm |
Unclear demarcation |
No |
| Formaldehyde |
10 ppm |
|
No |