Indicator: 200 to 5000 ppm
Measuring Range:
+ 50 to 200 ppm, Number of Pump Strokes 2 to 4
+ 200 to 5000 ppm, Number of Pump Strokes 1
Sampling Time: 45 seconds per pump stroke
Colour Change: Purple → Pale pink
Coefficient of Variation: 10% (for 200 to 1000 ppm), 5% (for 1000 to 5000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 50 to 200 ppm |
200 to 5000 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
10 ppm (n=4) |
| Colour Change |
Purple → Pale pink |
| Reaction Principle |
Hydrogen chloride reacts with indicator to produce pale pink stain. |
| Coefficient of Variation |
10% (for 200 to 1000 ppm), 5% (for 1000 to 5000 ppm) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| 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 |
|
No |
No |
| Nitric oxide |
|
No |
No |
| Chlorine |
≧ 4ppm |
+ |
White( ≧ 1ppm ) |
| Carbon dioxide |
|
No |
No |
| Nitrogen dioxide |
≧ 1000ppm |
+ |
White( ≧ 1000ppm ) |
| Hydrogen sulphide |
≧ 5% |
 |
No |
| Sulphur dioxide |
≧ 100ppm |
+ |
Yellow |
| n-Hexane |
|
No |
No |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| - |
C 2 ppm(2014) |
- |
