Indicator: 1 to 20 ppm
Measuring Range:
+ 0.1 to 1 ppm, Number of Pump Strokes 2
+ 1 to 20 ppm, Number of Pump Strokes 1
+ 20 to 40 ppm, Number of Pump Strokes 1/2
Sampling Time: 30 seconds per pump stroke
Colour Change: Yellow →Reddish purple
Reaction Principle: HNO3 + Indicator → Chemical reaction product
Coefficient of Variation: 15% (for 1 to 5 ppm), 10% (for 5 to 20 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
| 0.1 to 1 ppm |
1 to 20 ppm |
20 to 40 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
30 seconds per pump stroke |
| Detecting Limit |
0.05 ppm (n=10) |
| Colour Change |
Yellow →Reddish purple |
| Reaction Principle |
HNO3 + Indicator → Chemical reaction product |
| Coefficient of Variation |
15% (for 1 to 5 ppm), 10% (for 5 to 20 ppm) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Humidity 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 |
| Hydrogen chloride |
1/10 time |
+ |
Reddish purple |
| Chlorine |
|
No |
Breaches |
| Carbon monoxide |
|
No |
No |
| Nitrogen dioxide |
|
No |
No |
| Organic solvents |
|
No |
No |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Hydrogen bromide |
0.8 |
1 |
0.8 to 16 ppm |
| Trichloroacetic acid |
by scale |
1 |
1 to 37.5 ppm |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 2 ppm |
4 ppm |
- |
