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河南省鑫屬實業有限公司
河南省鑫屬實業有限公司
硫化氫二氧化硫檢測管 45S，Measuring Range 2.5 to 0.5 12.5 to 2.5 0.5 to 10 (2.5) to 60 10 to 20 60 to 120 Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2 Sampling
硫化氫二氧化硫檢測管 45S
Hydrogen sulphide, sulphur Dioxide No.45S
| Performance |
| Name ofGas | SO2 tube | H2S tube | SO2 tube | H2S tube | SO2 tube | H2S tube |
| MeasuringRange | 2.5 to 0.5 | 12.5 to 2.5 | 0.5 to 10 | （2.5） to 60 | 10 to 20 | 60 to 120 |
| PumpStrokes | 2 | 1 | 1/2 | |||
| CorrectionFactor | 1/2 | 1 | 2 | |||
| SamplingTime | 1 minute per pumpstroke | |||||
| DetectingLimit | 0.05 ppm （n=2） | |||||
| ColorChange | SO2tube : Yellowish green → Yellow | |||||
| Reaction Formula | SO2tube: | |||||
| Coefficient of Variation | SO2 tube: 10% （for 0.5 to 2 ppm）, 5% （for 2 to 10 ppm） | |||||
| 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 | ||
| SO2 tube | H2S tube | SO2 tube | H2S tube | ||
| Nitrogendioxide |  5 ppm | Pluserror | Noeffect | Pale purple | No discoloration |
| Nitrogenmonoxide | - | No effect | No effect | No discoloration | |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Permeation tube method | |
| TLV-TWA | TLV-S | Explosive range |
| SO2 :2ppm H2S : 10ppm | SO2 :5ppm H2S : 15ppm | H2S : 4.0 to 44% |
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