Indicator: 50 to 500 ppm
Measuring Range:
+ 20 to 50 ppm, Number of Pump Strokes 2
+ 50 to 500 ppm, Number of Pump Strokes 1
+ 500 to 1300 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Yellow → Reddish Purple
Reaction Principle: Cl2C:CHCl + PbO2 + H2SO4 → HCl, HCl + Basic Compound → Chloride
Coefficient of Variation: 10% (for 50 to 100 ppm), 5% (for 100 to 500 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 20 to 50 ppm |
50 to 500 ppm |
500 to 1300 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
4 ppm (n=2) |
| Colour Change |
Yellow → Reddish Purple |
| Reaction Principle |
Cl2C:CHCl + PbO2 + H2SO4 → HCl
HCl + Basic Compound → Chloride |
| Coefficient of Variation |
10% (for 50 to 100 ppm), 5% (for 100 to 500 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 |
| Hydrogen chloride, Chlorine, Bromine |
|
+ |
Reddish purple |
| Acetone |
≦ 200 ppm |
No |
No |
| 1,1,1-Trichloroethane |
|
+ |
Reddish purple ( ≧ 3000 ppm) |
| Unsaturated halogenated hydrocarbons |
|
+ |
Reddish purple |
| Aromatic hydrocarbons |
≧ 100 ppm |
 |
No |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| 1,2-Dichloroethylene |
1.6 |
1 |
80 to 800 ppm |
| 1,3-Dichloropropene |
0.9 |
2 |
45 to 450 ppm |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 10 ppm |
25 ppm |
- |
