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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 to 100 ppm |
| Sampling Hours | 1 to 10 hours |
| Detecting Limit | 0.5 ppm （10hours） |
| Color Change | Yellow→ Purple |
| Reaction Principle | HF +Indicator 仺 Purple product |
| Coefficient ofVariation | 15%（for 10 to 20 ppm-hr）,10% （for 20 to 100 ppm-hr） |
| ShelfLife | 3 Year |
| Correctionsfor temperature & humidity | Temperature and Humiditycorrection is necessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Chlorine | 1/5 time | + | Bleaches zero zone |
| Hydrogen chloride Nitric acid | 1/5 time | + | Purple |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 0.5ppm | C 2ppm | - |
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