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5M sulfur dioxide detection tube for sulfur dioxide SO2
5M sulfur dioxide detection tube for sulfur dioxide SO2, ranging from 20ppm to 100ppm, from 100ppm to 1800ppm, and from 1800ppm to 3600ppm. Detection
Product details
5M二氧化硫检知管 Sulphur dioxide SO2
Sulphur dioxide No.5M
SO2
Performance |
MeasuringRange |
20 to 100ppm |
100 to 1800ppm |
1800 to 3600ppm |
Number of PumpStrokes |
4 |
1 |
1/2 |
CorrectionFactor |
1/5 |
1 |
2 |
SamplingTime |
45 seconds per pumpstroke |
||
DetectingLimit |
4 ppm (n=4) |
||
ColorChange |
Purple → Yellow |
||
ReactionPrinciple |
SO2 +BaCl2 +H2O 仺 BaSO3 +2HCl |
||
Coefficient ofVariation | 10% (for100 to 600 ppm), 5% (for 600 to 1800 ppm) | ||
ShelfLife | 3Years | ||
Correctionsfor temperature & humidity |
Temperature correction isnecessary | ||
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 |
1/10 |
Plus error |
Produces whitestain |
Hydrogensulfide |
10 times |
Minus 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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