Indicator: 5 to 100 ppm
Measuring Range:
+ 2 to 5 ppm, Number of Pump Strokes 2
+ 5 to 100 ppm, Number of Pump Strokes 1
+ 100 to 250 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Yellow → Reddish purple
Reaction Principle: Cl2C:CCl2 + PbO2 + H2SO4 → HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 2 to 5 ppm |
5 to 100 ppm |
100 to 250 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
0.4 ppm (n=2) |
| Colour Change |
Yellow → Reddish purple |
| Reaction Principle |
Cl2C:CCl2 + PbO2 + H2SO4 → HCl
HCl + Base → Chloride |
| Coefficient of Variation |
10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Nitric oxide, Nitrogen dioxide |
|
No |
No |
Chlorine, Bromine,
Hydrogen chloride |
|
+ |
Reddish purple |
| Acetone |
≦ 200 ppm |
No |
No |
| Unsaturated halogenated HCs |
|
+ |
Reddish purple |
| Aromatic hydrocarbons |
≧ 100 ppm |
 |
No |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 25 ppm |
100 ppm |
- |
