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18121126516
021-64835787
三氯乙烯气体检测管132HA
Trichloroethylene No.132HA
Cl2C:CHCl
| Performance |
Measuring Range | 20 to 50 ppm | 50 to 500 ppm | 500 to 1300ppm |
Number of PumpStrokes | 2 | 1 | 1/2 |
CorrectionFactor | 0.4 | 1 | 2.6 |
Sampling Time | 45 seconds per pumpstroke | ||
Detecting Limit | 4 ppm (n=2) | ||
Color Change | Yellow → ReddishPurple | ||
Reaction Principle | Cl2C:CHCl + PbO2 +H2SO4 →HCl | ||
| Coefficient ofVariation | 10% (for 50 to 100ppm), 5% (for 100 to 500 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 |
1,1,1-Trichloroethane | - | Plus error | Produce reddishpurple at 3000 ppm |
UnsaturatedHalogenated HCs | - | Plus error | Produces reddishpurple stain |
Aromatichydrocarbons | 100ppm | Minus error | Nodiscoloration |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
1,2-Dichloroethylene | 1.6 | 1 | 80 to 800 ppm |
1,3-Dichloropropene | 0.9 | 2 | 45 to 450ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 50ppm | 100ppm | - |