Hydrogen Sulfide and Sulphur Dioxide 0.02-8% Detection Tubes
- Detecting Limit: 0.002% (10 pump strokes)
- Color Change: Brown to Pale Yellow
- Corrections for temperature and humidity: Unnecessary
- Relative Standard Deviation: 10% (for 0.2 to 1%), 5% (for 1 to 4%)
- Shelf Life: 3 years
- Reaction Principle:
- H2S + I2 → 2Hl + S
- SO2 + I2 + 2H2O → 2Hl + H2SO4
Performance:
| Measuring Range: |
0.02 to 0.2% |
0.2 to 4.0% |
4.0 to 8.0% |
| Number of Pump Strokes: |
2 to 10 (200 to 1000 ml) |
1 (100 ml) |
1/2 (50 ml) |
| Correction Factor: |
1/2 to 1/10 |
1 |
2 |
| Sampling Time: |
1.5 to 7.5 min |
45 sec |
30 sec |
Possible coexisting substances and their interferences:
| Substance |
Interference |
Changes color by itself to |
| Other sulfur compounds |
+ |
Pale yellow |
Hydrogen Sulfide and Sulphur Dioxide 0.02-8% Detection Tubes
Reaction Principle:
H2S + I2 to 2HI + S
SO2 + I2 + 2H20 to 2HI + H2SO4
Possible Coexisting Substances and their Interference:
| Substance:
|
Concentration:
|
Interference:
|
Color Changes By Itself:
|
| Other sulphur compounds
|
X
|
+
|
Pale Yellow
|
Hydrogen Sulfide and Sulphur Dioxide 0.02-8% Detection Tubes
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