參考價 | 面議 |
產(chǎn)品詳情
Performance |
MeasuringRange | 5 to 10 ppm | 10 to 100 ppm | 100 to 250ppm |
Number of Pump Strokes | 2 | 1 | 1/2 |
Correction Factor | 1/2 | 1 | 2.5 |
SamplingTime | 1 minute per pumpstroke | ||
DetectingLimit | 1 ppm (n=2) | ||
ColorChange | Yellow → ReddishPurple | ||
ReactionPrinciple | ClCH:CHCl +PbO2 + H2SO4 → HCl | ||
Coefficient ofVariation | 10% (for10 to 20 ppm), 5% (for 20 to 100 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 byitself |
Nitrogen monoxide,Nitrogen dioxide | - | No effect | Nodiscoloration |
Hydrogen chloride,Halogens | - | Plus error | Produce reddishpurple stain |
Tetrachloroethylene | - | Plus error | Produces reddishpurple stain |
Trichloroethylene | - | Plus error | Produces reddishpurple stain |
Othersubstance measurable with this detector tube |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-STEL | Explosive range |
200ppm | - | - |