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简单介绍：
丙酮检测管151 Acetone CH3COCH3，Measuring Range 0.05 to 0.8% 0.8 to 2.0% Number of Pump Strokes 2 1 Correction Factor 1 2.5 Sampling Time 2 minutes per pump stroke Detecting Limit 0.003% (n=2)丙酮环乙烯检测管价格
详情介绍：
丙酮检测管151 Acetone CH3COCH3
Acetone No.151
Acetone No.151
CH3COCH3
| Performance |
MeasuringRange | 0.05 to 0.8% | 0.8 to 2.0% |
Number of Pump Strokes | 2 | 1 |
Correction Factor | 1 | 2.5 |
SamplingTime | 2 minutes per pumpstroke | |
DetectingLimit | 0.003% (n=2) | |
ColorChange | Orange → Darkgreen | |
ReactionPrinciple | CH3COCH3 + K2Cr2O7 + H2SO4 + H2O → Cr2(SO4)3 | |
| Coefficient ofVariation | 10%(for 0.01 to 0.2 %), 5% (for 0.2 to 0.8 %) | |
| ShelfLife | 3Years | |
| Correctionsfor temperature & humidity | Temperature correction is necessary | |
| Store the tubes at cool and darkplace. | ||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Sulfurdioxide | 500 ppm | Plus error | Produce greenstain |
Hydrogensulfide | 500ppm | Plus error | Produce darkgreen |
Alcohols, Esters,Ketones | - | Plus error | Produce dark greenstain |
Propane | 0.2% | Yes | Produce dark greenfor whole layer |
Aromatic HCs. | 500ppm | Plus error | Produce darkgreen |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Cyclohexene | 1.0 | 1 | 0.05 to0.8% |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 500 ppm | 750ppm | 2.1to 13% |