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乙酸乙酯气体检测管141 Ethyl acetate，Measuring Range 0.1 to 1.5% Number of Pump Stroke 1 Correction Factor 1 Sampling Time 2 minutes per pump stroke 乙酸乙酯141 Ethyl acetate CH3CO2C2H5
详情介绍：
乙酸乙酯气体检测管141 Ethyl acetate
Ethyl acetate No.141
CH3CO2C2H5
| Performance |
MeasuringRange | 0.1 to 1.5% |
Number of PumpStroke | 1 |
CorrectionFactor | 1 |
SamplingTime | 2 minutes per pumpstroke |
DetectingLimit | 0.01% (n=1) |
ColorChange | Orange → Darkgreen |
ReactionPrinciple | CH3CO2C2H5 + Cr6+ H2SO4 → Cr3+ |
| Coefficient ofVariation | 10% (for 0.04 to 0.3%), 5% (for 0.3 to 1.5 %) |
| ShelfLife | 3 Years |
| 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 | Discolorsgreen |
Hydrogensulfide | 500 ppm | Plus error | Discolors darkgreen |
Alcohols, Esters,Ketones | Plus error | Discolors darkgreen | |
Propane | 0.2% | Plus error | Dark green (wholelayer) |
Aromatic HCs | 500 ppm | Plus error | Discolors darkgreen |
| Othersubstance measurable with this detector tube |
Substance | Correction | Pump Strokes | Measuring Range |
Vinyl acetate | Factor: 0.6 | 1 | 0.02 to0.9% |
| Calibration gasgeneration | Static gas dilutionmethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 400ppm | - | 2 to11.5% |