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简单介绍：
三氯乙烯气体检测管132LL，Measuring Range 0.125 to 0.25ppm 0.25 to 4.0ppm 4.0 to 8.8ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2.2 Sampling，三氯乙烯气体检测管132LL Trichloroethylene Cl2C:CHCl
详情介绍：
三氯乙烯气体检测管132LL Trichloroethylene No.132LL
Cl2C:CHCl
| Performance |
MeasuringRange | 0.125to 0.25ppm | 0.25to 4.0ppm | 4.0to 8.8ppm |
Number of Pump Strokes | 2 | 1 | 1/2 |
Correction Factor | 1/2 | 1 | 2.2 |
SamplingTime | 1.5 minutes per pumpstroke | ||
DetectingLimit | 0.05 ppm (n=2) | ||
ColorChange | Yellow →Purple | ||
ReactionPrinciple | Cl2C:CHCl + PbO2 +H2SO4 →HCl | ||
| Coefficient ofVariation | 10% (for0.25 to 1 ppm), 5% (for 1 to 4 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 |
Hydrogen chloride,Chlorine, | 1/2 time | Plus error | Produce purplestain |
Tetrachloroethylene | 1/2 time | Plus error | Produce purplestain |
1,1,1-Trichloroethane | 80 ppm or less | No effect | No discoloration upto 80 ppm |
Toluene,Xylene | - | No effect | Nodiscoloration |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
1,2-Dichloroethylene | 1.5 | 1 | 0.4 to 6ppm |
| Calibration gasgeneration | Vaper pressuremethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 50ppm | 100ppm | - |