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Tetrachloroethylene detection tube 133HA
四氯乙烯检测管133HA Tetrachloroethylene，Measuring Range 7 to 20 ppm 20 to 300ppm 300 to 900ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/3 1 3 Sampl
Product details
四氯乙烯检测管133 HA Tetrachloroethylene No.133HA
Cl2C:CCl2
| Performance |
Measuring Range |
7to 20ppm |
20to 300ppm |
300to 900ppm |
Number of PumpStrokes |
2 |
1 |
1/2 |
Correction Factor |
1/3 |
1 |
3 |
Sampling Time |
45 seconds per pumpstroke |
||
Detecting Limit |
0.5 ppm (n=2) |
||
Color Change |
Yellow → Reddishpurple |
||
Reaction Principle |
Cl2C:CCl2+ PbO2+ H2SO4→ HCl |
||
| Coefficient ofVariation | 10% (for 20 to 100ppm), 5% (for 100 to 300 ppm) |
||
| ShelfLife | 2Years | ||
| Correctionsfor temperature & humidity |
Temperature correction isnecessary | ||
| Store the tubes in the refrigerator to keep at10oC (50oF) orbelow. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance |
Concentration |
Interference |
Change color by itself |
Chlorine,Bromine, |
- | Plus error |
Produce reddishpurple |
1,1,1-Trichloroethane |
3000 ppm |
Plus error |
Produce reddishpurple stain |
Trichloroethylene |
- | Plus error |
Produce reddishpurple |
| Unsaturated Halogenated HCs | - | Plus error | Produce reddishpurple |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25ppm | 100ppm | - |
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