醋酸异丙酯检测管146
- 型号:146
- 产地:其它
- 供应商:上海豫东电子有限公司
- 供应商报价:电议
- 标签:醋酸异丙酯检测管146,供应醋酸异丙酯检测管146,上海豫东电子有限公司
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% |