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简单介绍：
一氧化碳气体检测管1LL Carbon monoxide，Measuring Range 5 to 50 ppm Number of Pump Strokes 2 Correction Factor 1 Sampling Time 2 minutes per pump stroke Detecting Limit 1 ppm，一氧化碳气体检测管价格
详情介绍：
一氧化碳气体检测管1LL Carbon monoxide
Carbonmonoxide No.1LL
CO
| Performance |
MeasuringRange | 5 to 50 ppm |
Number of PumpStrokes | 2 |
CorrectionFactor | 1 |
SamplingTime | 2 minutes per pumpstroke |
DetectingLimit | 1 ppm (n=2) |
ColorChange | Yellow → Blackishbrown |
ReactionPrinciple | CO +Na2Pd(SO3)2 → Pd + CO2 + SO2 + Na2SO3 |
| Coefficient ofVariation | 15% (for 5 to 10ppm), 10% (for 10 to 50 ppm) |
| ShelfLife | 3 Years |
| Correctionsfor temperature & humidity | Unnecessary |
| Store the tubes at cool and darkplace. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Acetylene | 1/50 time | Plus error | Produces dark brownstain |
Sulfurdioxide | 1/10 time | Plus error | Produces dark brownstain |
Nitrogendioxide | 40 ppm | Plus error | Produces redstain |
Hydrogensulfide | 1/5 time | Plus error | Produces dark brownstain |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | - | 12.5 to 74% |