參考價(jià) | 面議 |
產(chǎn)品詳情
Performance |
MeasuringRange | 2.5 to 300 ppm |
|
|
Number of Pump Strokes | 2 |
|
|
Correction Factor | 1 |
|
|
SamplingTime | 1.5 minutes per pumpstroke | ||
DetectingLimit | 1 ppm (n=2) | ||
ColorChange | White → Lightbrown | ||
ReactionPrinciple | C6H4Cl2 + I2O5 + Cr6+ + H2S2O7 → I2 | ||
Coefficient ofVariation | 10% (for2.5 to 10 ppm), 5% (for 30 to 300 ppm) | ||
ShelfLife | 3Years | ||
Correctionsfor temperature & humidity | Temperature correction is necessary | ||
Store the tubes atcool and dark place. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color byitself |
Aromatichydrocarbons |
| Plus error | Light brown |
Acetylene | 0.2% | Plus error | Light brown |
Carbonmonoxide | 0.1% | No effect |
|
Ethylene,Esters | 0.2% | No effect |
|
Hexane | 0.2% | ||
Alcohols, Ketones | 1% | No |
Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
m-Dichlorobenzene | 1.0 | 2 | 2.5 to 300 ppm |
p-Dichlorobenzene | 1.0 | 2 | 2.5 to 300ppm |
Calibration gasgeneration | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
25 ppm | 50ppm | 2.2 to 12% |