Indicator: 0.05 to 1.0%
Measuring Range:
+ 0.05 to 1.0%, Number of Pump Strokes 1
+ 1.0 to 2.5%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: White → Yellowish brown
Reaction Principle: Cl2C:CHCl+ I2O5 + H2S2O7 → I2
Coefficient of Variation: 10% (for 0.05 to 0.3 %), 5% (for 0.3 to 1 %)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
0.005% (n=1) |
| Colour Change |
White → Yellowish brown (dark brown at demarcation) |
| Reaction Principle |
Cl2C:CHCl+ I2O5 + H2S2O7 → I2 |
| Coefficient of Variation |
10% (for 0.05 to 0.3 %), 5% (for 0.3 to 1 %) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| 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 |
 0.1% |
+ |
Dark brown |
| Acetylene |
0.1% |
+ |
Dark brown |
| Acetone |
 6 times |
No |
Brown |
| Ethylene |
0.5% |
+ |
Dark brown |
| Toluene, Xylene |
3 times |
No |
Brown |
| HCs (C3) |
|
+ |
Dark brown |
| Tetrachloroethylene |
|
+ |
Yellowish brown |
| 1,1,1-Trichloroethane |
|
+ |
Yellowish brown(ring) |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Tetrachloroethylene |
1.5 |
1 |
0.075 to 1.5% |
| Calibration gas generation |
Static gas dilution method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 10 ppm(2014) |
25 ppm(2014) |
- |
