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甲基环丙酮检测管 155
点击次数:199发布时间:2012/3/20 10:44:57
更新日期:2012/9/21 14:20:44
所 在 地:其它
产品型号:155
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详细内容
甲基环丙酮检测管 155
的详细介绍甲基环丙酮检测管 155
Methylcychlohexa No.155
C7H12O
Performance |
MeasuringRange | 2 to 50 ppm | 50 to 100 ppm |
Number of PumpStrokes | 3 | 2 |
Correction Factor | 1 | 2 |
SamplingTime | 3 minutes per pumpstroke | |
DetectingLimit | 0.2 ppm (n=3) | |
ColorChange | Pale Yellow →Yellow | |
ReactionPrinciple | C7H12O + C6H3(NO2)2NHNH2 → (CH3)2C:NNHC6H3(NO2)2 | |
Coefficient ofVariation | 15% (for2 to 10 ppm), 10% (for 10 to 50 ppm) | |
ShelfLife | 2Years | |
Correctionsfor temperature & humidity | Temperature correction is necessary | |
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Ketones | - | Plus error | Discolors toyellow |
Othersubstance measurable with this detector tube |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-STEL | Explosive range |
50ppm | 75ppm | 1.15%or higher |