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简单介绍：
醋酸丁酯气体检测管142L Butyl acetate，醋酸丁酯(乙酸丁酯)Butyl acetate，Strokes 2 Correction Factor 1 Sampling Time 4 minutes per pump stroke Detecting Limit 2 ppm (n=2)醋酸丁酯检测管价格
详情介绍：
醋酸丁酯气体检测管142L Butyl acetate
Butyl acetate No.142L
CH3CO2(CH2)3CH3(CH3CO2C4H9)
| Performance |
MeasuringRange | 10 to 300 ppm |
Number of PumpStrokes | 2 |
CorrectionFactor | 1 |
SamplingTime | 4 minutes per pumpstroke |
DetectingLimit | 2 ppm (n=2) |
ColorChange | Yellow → Dark brown →Pale blue after few minutes |
ReactionPrinciple | CH3CO2(CH2)3CH3 + Cr6+ + H2SO4 → Cr3+ |
| Coefficient ofVariation | 15% (for 10 to 100ppm), 10% (for 100 to 300 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 | Dark brown (few minuteslater) |
Ketones | - | Plus error | |
Esters | - | Plus error | |
Aromatic HCs | - | Pluserror |
Pale blue| Othersubstance measurable with this detector tube |
Substance | Correction | No. of PumpStrokes | MeasuringRange |
IsobutyAcrylate | Factor: 0.26 | 2 | 2.6 to 78 ppm |
ButylAcrylate | Factor 0.7 | 2 | 7 to 210ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 150ppm | 200ppm | 1.7 to 7.6% |