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简单介绍：
三氯乙烯检测管132M Trichloroethylene，Measuring Range 2 to 5ppm 5 to 100ppm 100 to 250ppm Number of Pump Strokes 2 1 1/2 Correction Factor 0.4 1 2.5 Sampling Time 1 minute per pump stroke
详情介绍：
三氯乙烯检测管132M Trichloroethylene
Trichloroethylene No.132M
Cl2C:CHCl
| Performance |
MeasuringRange | 2to 5ppm | 5to 100ppm | 100to 250ppm |
Number of Pump Strokes | 2 | 1 | 1/2 |
Correction Factor | 0.4 | 1 | 2.5 |
SamplingTime | 1 minute per pumpstroke | ||
DetectingLimit | 0.4 ppm (n=2) | ||
ColorChange | Yellow → ReddishPurple | ||
ReactionPrinciple | Cl2C:CHCl + PbO2 +H2SO4 →HCl | ||
| Coefficient ofVariation | 10% (for5 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 |
Nitric Oxide,Nitrogen dioxide | - | No effect | Nodiscoloration |
Hydrogen chloride,Chlorine, Bromine | - | Plus error | Produce reddishpurple stain |
Acetone | 200 ppm | No effect | Nodiscoloration |
UnsaturatedHalogenated HCs | - | Plus error | Produces reddishpurple stain |
Aromatichydrocarbons | 100ppm | Minus error | Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 50ppm | 100ppm | - |