Indicator: 100 to 6000 ppm
Measuring Range:
+ 100 to 6000 ppm , Number of Pump Strokes 2
+ 6000 to 15000 ppm, Number of Pump Strokes 1
+ 15000 to 34800 ppm , Number of Pump Strokes 1/2
Sampling Time: 1. 5 minute per pump stroke
Colour Change: White →Dark brown
Reaction Principle: CH3I + I2O5 → I2
Coefficient of Variation: 5% (for 100 to 6000ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
100 to 6000 ppm |
6000 to 15000 ppm |
15000 to 34800 ppm |
| Number of Pump Strokes |
2 |
1 |
1/2 |
| Correction Factor |
1 |
2.5 |
5.8 |
| Sampling Time |
1.5 minutes per pump stroke |
| Detecting Limit |
5ppm (n=2) |
| Colour Change |
White →Dark brown |
| Reaction Principle |
CH3I + I2O5 → I2 |
| Coefficient of Variation |
5% (for 100 to 6000ppm) |
| 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 |
| Carbon monoxide |
 20ppm |
+ |
Pale brown (pale green at the end of staining) |
| Carbon dioxide |
|
No |
No |
| Ethylene |
|
+ |
Pale yellow |
| Hexane |
|
+ |
Pale orange |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 2 ppm |
- |
- |
