Indicator: 1 ~ 30 ppm
Measuring Range: 1 to 30 ppm, Number of Pump Strokes 1
Sampling Time: 4 minutes per pump stroke
Colour Change: White → Pale Pink
Reaction Principle: CO + Paradium Salt (White) → Pale pink product
Coefficient of Variation: 10% (for 1 to 10 ppm), 5% (for 10 to 30 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
1 to 30 ppm |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
4 minutes per pump stroke |
| Detecting Limit |
0.5 ppm (n=1) |
| Colour Change |
White → Pale Pink |
| Reaction Principle |
CO + Paradium Salt (White) → Pale pink product |
| Coefficient of Variation |
10% (for 1 to 10 ppm), 5% (for 10 to 30 ppm) |
| Shelf Life |
2 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 |
| Ammonia |
|
No |
No |
| sulphur dioxide |
1/20 time |
 |
No |
| Nitrogen dioxide |
1/20 time |
+ |
No |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 25 ppm |
- |
12.5 to 74% |
