參考價(jià) | 面議 |
產(chǎn)品詳情
Performance |
MeasuringRange | 50 to 100 ppm | 100 to 2000ppm |
Number of PumpStrokes | 2 | 1 |
CorrectionFactor | 1/2 | 1 |
SamplingTime | 4 minutes per pumpstroke | |
DetectingLimit | 5 ppm (n=2) | |
Color Change | Pink → Paleblue | |
Reaction Principle | C2H5OH + Cr6+ + H2SO4 →Cr3+ | |
Coefficient ofVariation | 15% (for50 to 500 ppm), 10% (for 500 to 2000 ppm) | |
ShelfLife | 3Years | |
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 | + | Paleblue |
Othersubstance measurable with this detector tube |
Calibration gasgeneration | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
1000ppm | - | 3.3 to19% |