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简单介绍：
醋酸乙酯检测管141L Ethyl acetate，Measuring Range 25 to 800 ppm Number of Pump Strokes 2 Correction Factor 1 Sampling Time 3 minutes per，醋酸乙酯检测管141L Ethyl acetate CH3CO2C2H5，乙酸乙酯检测管价格.
详情介绍：
醋酸乙酯检测管141L Ethyl acetate
Ethyl acetate No.141L
CH3CO2C2H5
| Performance |
MeasuringRange | 25 to 800 ppm |
Number of PumpStrokes | 2 |
CorrectionFactor | 1 |
SamplingTime | 3 minutes per pumpstroke |
DetectingLimit | 5 ppm (n=2) |
ColorChange | Yellow → Blackishbrown → Light blue after few minute |
ReactionPrinciple | CH3CO2C2H5 + Cr6+ + H2SO4 → Cr3+ |
| Coefficient ofVariation | 15% (for 25 to 200ppm), 10% (for 200 to 800 ppm) |
| ShelfLife | 2 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 |
Alcohols | - | Plus error | Discolors greenishbrown |
Ketones | - | Plus error | Discolors greenishbrown |
Esters | - | Plus error | Discolors greenishbrown |
Aromatic HCs | - | Plus error | Discolors greenishbrown |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Static gas dilutionmethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 400ppm | - | 2 to 11.5% |