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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
| Performance |
| Measuring Range | 1.3 to 200 ppm |
| Sampling Hours | 1 to 8 hours |
| Detecting Limit | 1.3 ppm （8hours） |
| Color Change | Reddish purple → Palebrown |
| Reaction Principle | CH2:CHCH:CH2 + MnO4 仺 Pale brown product |
| Coefficient ofVariation | 10%（for 10 to 200 ppmr） |
| ShelfLife | 2 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Interference | Change colour byitself to |
| Unsaturatedhydrocarbons | + | Palebrown |
| Othersubstance measurable with this detectortube |
| Substance | CorrectionFactor | SamplingTime | MeasuringRange |
| Ethylene | Factor: 1.2 | 1 to 10 | 1.5 to240 ppm |
| Vinylchloride | Factor: 1.2 | 1 to 10 | 1.5 to240 ppm |
| Isoprene | Factor: 2.0 | 1 to 10 | 2.5 to 400 ppm |
| Trans-1,2-Dichloroethylene | Factor: 3.0 | 1 to 10 | 3.8 to 600ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 2 ppm | - | 2.0to 12% |
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