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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 | 0.5 to 40 ppm |
| Sampling Hours | 1 to 10 hours |
| Detecting Limit | 0.3 ppm （10hours） |
| Color Change | White→ Yellow |
| Reaction Principle | H2O2 +Ti（SO4）2 →Yellow product |
| Coefficient ofVariation | 10%（for 5 to 40 ppm-hr） |
| ShelfLife | 3 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Nitrogendioxide | No | No | |
| Chlorine,Ozone |
| No | No |
| Acetaldehyde | 20 ppm | Unclear demarcation | No |
| Formaldehyde | 10 ppm | - | No |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 1 ppm | - | - |
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