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一氧化碳检测管1DL CO Carbon monoxide，Measuring Range 0.4 to 400 ppm Sampling Hours 0.5 to 24 hours Detecting Limit 0.2 ppm (24 hours) Color Change Pale Yellow，2一氧化碳气体检测管价格
详情介绍：
一氧化碳检测管1DL CO Carbon monoxide Carbon monoxide No.1DL
CO
| Performance |
Measuring Range | 0.4 to 400 ppm |
Sampling Hours | 0.5 to 24hours |
Detecting Limit | 0.2 ppm (24hours) |
Color Change | Pale Yellow →Brown |
Reaction Principle | CO +Na2Pd(SO3)2 → Pd + CO2 + SO2 + Na2SO3 |
| Coefficient ofVariation | 10%(for 10 to 200 ppm-hr) |
| ShelfLife | 2 Year |
| Correctionsfor temperature & humidity | Unnecessary |
| Store the tubes inthe refrigerator to keep at 10ºC (50ºF) orbelow. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Nitrogendioxide | 5 ppm | Minus error | No discoloration byitself |
Chlorine | - | No effect | No discoloration byitself |
Hydrogensulfide | - | Plus error | Discolors reddishbrown |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | - | 12.5to 74% |