Indicator: 50 to 500 ppm
Measuring Range:
+ 25 to 50pm, Number of Pump Strokes 2
+ 50 to 500 ppm, Number of Pump Strokes 1
+ 500 to 1000 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: White → Vermilion
Reaction Principle: Cl2 + o - Tolidine → Vermilion products
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 |
| 25 to 50pm |
50 to 500 ppm |
500 to 1000 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
5 ppm (n=2) |
| Colour Change |
White → Vermilion (reddish orange) |
| Reaction Principle |
Cl2 + o - Tolidine → Vermilion products |
| Coefficient of Variation |
10% (for 50 to 100 ppm), 5% (for 100 to 500 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 |
| Bromine |
|
+ |
Vermilion |
| Chlorine dioxide |
|
+ |
Vermilion |
| Iodine |
|
+ |
Vermilion |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Chlorine dioxide |
0.5 |
1 |
25 to 250 ppm |
| Calibration gas generation |
Permeation tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 0.5 ppm |
1 ppm |
- |
