APP
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| 參考價(jià) | 面議 |
產(chǎn)品詳情
| Performance |
MeasuringRange | 0.4 to 1 ppm | 1 to 25 ppm | 25 to 62.5 ppm |
Number of Pump Strokes | 4 | 2 | 1 |
CorrectionFactor | 0.4 | 1 | 2.5 |
SamplingTime | 1.5 minutes per pumpstroke | ||
DetectingLimit | 0.1 ppm (n =4) | ||
ColorChange | Pale yellow →Gray | ||
ReactionPrinciple | C6H5(CH3)OH + Ce(NO3)62- → C6H5O(CH3)Ce(NO3)52- | ||
| Coefficient ofVariation | 15% (for 1 to 5 ppm),10% (for 5 to 25 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 |
Ammonia | 2000 ppm | Pluserror | Produce whitestain |
Amines | 2000 ppm | ||
Phenol | - | Plus error | Produce graystain |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
m-Cresol | 1.0 | 2 | 1 to 25 ppm |
p-Cresol | 1.0 | 2 | 1 to 25ppm |
| Calibration gasgeneration | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5ppm | - | - |
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