Sulfur Dioxide (SO2) Detection Tubes (0.05 to 8.0%)
Gastec Detection Tube No. 5H measures Sulfur Dioxide with a Range of 0.05 to 8 %.
- Measuring Range:
- 0.05 to 0.5 %
- 0.5 to 4 %
- 4 to 8 %
- Number of Pump Strokes: 2 to 10, 1, 1/2
- Correction Factor: 1/2 to 1/10, 1, 2
- Sampling Time: 45 seconds per pump stroke
- Detecting Limit: 0.01 % (10 pump strokes)
- Changes from Orange to Green
- Corrections for temperature & humidity: Unnecessary
- Reaction Principle: SO2 + Cr6+ → Cr3+
- Relative Standard Deviation: 10 % (for 0.5 to 1 %), 5 % (for 1 to 4 %)
- 3 Year Shelf Life
- Store the tubes at cool and dark place.
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Hydrogen sulfide |
≧ 500 ppm |
+ |
No |
| Carbon dioxide |
|
No |
No |
| Carbon monoxide |
|
No |
No |
| Nitrogen dioxide |
|
No |
No |
Sulfur Dioxide (SO2) Detection Tubes (0.05 to 8.0%)
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