Indicator: 10 to 100 ppm
Measuring Range:
+ 5 to 10 ppm, Number of Pump Strokes 2
+ 10 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: ClCH:CHCl + PbO2 + H2SO4 → HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (10 ~ 20 ppm), 5% (20 ~100 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 5 to 10 ppm |
10 to 100 ppm |
100 to 250 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
1 ppm (n=2) |
| Colour Change |
Yellow → Reddish Purple |
| Reaction Principle |
ClCH:CHCl + PbO2 + H2SO4 → HCl
HCl + Base → Chloride
|
| Coefficient of Variation |
10% (for 10 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 |
| Nitrogen oxides |
|
No |
No |
| Hydrogen chloride, Halogens |
|
+ |
Reddish purple |
| Tetrachloroethylene |
|
+ |
Reddish purple |
| Trichloroethylene |
|
+ |
Reddish purple |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 200 ppm |
- |
- |
