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5H sulfur dioxide detection tube
5H sulfur dioxide detection tube, measuring range 0.05 to 0.5% 0.5 to 4.0% 4.0 to 8.0%, GASTEC emergency detection box for toxic and harmful gases in
Product details
5H二氧化硫检测管 Sulphur dioxide
Sulphur dioxide No.5H
SO2
| Performance |
MeasuringRange |
0.05 to 0.5% |
0.5 to 4.0% |
4.0 to 8.0% |
Number of PumpStrokes |
10 to 2 |
1 |
1/2 |
CorrectionFactor |
1/2 to 1/10 |
1 |
2 |
SamplingTime |
1 minute per pumpstroke |
||
DetectingLimit |
0.01% (n=10) |
||
ColorChange |
Orange → Green |
||
ReactionPrinciple |
SO2+ Cr6+→ Cr3+ |
||
| Coefficient ofVariation | 10% (for 0.5 to 1 %),5% (for 1 to 4 %) |
||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity |
Unnecessary | ||
| Store the tubes at cool and darkplace. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance |
Concentration |
Interference |
Change color by itself |
Carbonmonoxide |
- | No effect |
Nodiscoloration |
Carbondioxide |
- | No effect |
Nodiscoloration |
Nitrogendioxide |
- | No effect |
Nodiscoloration |
Hydrogensulfide |
500ppm |
Plus error |
Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | High pressure gascylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 2ppm | 5ppm | - |
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