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| 參考價(jià) | 面議 |
產(chǎn)品詳情
| Performance |
MeasuringRange | 2 to 30 ppm | 30 to 75 ppm |
Number of PumpStrokes | 4 | 2 |
Correction Factor | 1 | 2.5 |
SamplingTime | 2 minutes per pumpstroke | |
DetectingLimit | 0.2 ppm (n=4) | |
ColorChange | Pale Yellow →Yellow | |
ReactionPrinciple | Cyclohexanone reactswith 2,4-dinitrophenylhydrazine to form dinitropnenylhydrazone toproduce yellow in colour. | |
| Coefficient ofVariation | 10% (for2 to 10 ppm), 5% (for 10 to 30 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 | Produce yellowstain |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Furfural | 1.0 | 4 | 2 to 30 ppm |
| Diacetonealcohol | by scale | 2 | 2.5 to 100 ppm |
Isophorone | 1.0 | 8 | 2 to 30ppm |
| Calibration gasgeneration | Static gas dilutionmethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25ppm | - | 1.1 to 9.4% |
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