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醋酸异丙酯检测管146
点击次数:213发布时间:2012/3/20 10:54:10
更新日期:2012/9/21 14:20:27
所 在 地:其它
产品型号:146
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详细内容
醋酸异丙酯检测管146 Isoamyl acetate
的详细介绍醋酸异丙酯检测管146 Isoamyl acetate
Isoamyl acetate No.146
CH3CO2CH(CH3)2(i-CH3CO2C3H7)
Performance |
MeasuringRange | 10 to 500 ppm |
Number of PumpStrokes | 2 |
Correction Factor | 1 |
SamplingTime | 4 minutes perpump stroke |
DetectingLimit | 5 ppm(n=2) |
Color Change | Yellow → Blackishbrown → Pale blue after few minutes |
Reaction Principle | CH3CO2CH(CH3)2+ Cr6+ + H2SO4 → Cr3+ |
Coefficient ofVariation | 15% (for 5 to 50ppm), 10% (for 50 to 150 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 | + | Blackish brown thenturns to pale blue | |
Ketones |
| + | Blackish brown then turns topale blue |
Esters
|
| + | Blackish brown then turns topale blue |
Othersubstance measurable with this detector tube |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-STEL | Explosive range |
100 ppm | 200 ppm | 1.8 to8% |