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河南省鑫属实业有限公司
河南省鑫属实业有限公司
二氧化硫检测管5Lb Sulphur dioxide SO2，0.05 to0.1 ppm 0.1 to0.2 ppm 0.2 to5.0 ppm 5.0 to10.0 ppm，提供专业的检测仪器、防护手段及配套方案。二甲苯、甲醇、乙醇、乙烯、乙炔、乙醚、汽油、光气、氰化氢、丙烯腈、磷化氢等几十种
| Performance |
| MeasuringRange | 0.05 to0.1 ppm | 0.1 to0.2 ppm | 0.2 to5.0 ppm | 5.0 to10.0 ppm |
| Number of PumpStrokes | 8 | 4 | 2 | 1 |
| CorrectionFactor | 1/4 | 1/2 | 1 | 2 |
| Sampling Time | 1 minute per pump stroke | |||
| DetectingLimit | 0.01 ppm （n=8） | |||
| Colour Change | Yellowish green → Yellow | |||
| ReactionPrinciple | SO2 + BaCl2 +H2O 仺 BaSO3 + 2HCl HCl+Base 仺 Chloride | |||
| Coefficient ofVariation | 10% （for 0.2 to 1 ppm）, 5% （for 1 to 5ppm） | |||
| Shelf Life | 3 Years | |||
| Corrections for temperature &humidity | Unnecessary | |||
| Store the tubes at cool and darkplace. | ||||
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Carbon monoxide, | No | No | |
| Carbondioxide | 100% | + | Yellow |
| Nitrogen dioxide | 1 ppm | Uncleardemarcation | Yellow |
| Hydrogen sulphide |
| No | No |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Permeation tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 2ppm | 5ppm | - |
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