Gastec 132HH Quick-measuring Detector tubes Trichloroethylene Cl2C:CHCl (0.05 ~ 2.5%)
ManufacturerGastec(View more products from this manufacturer)
Model132HH
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Indicator: 0.05 to 1.0%
Measuring Range:
+ 0.05 to 1.0%, Number of Pump Strokes 1
+ 1.0 to 2.5%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: White → Yellowish brown
Reaction Principle: Cl2C:CHCl+ I2O5 + H2S2O7 → I2
Coefficient of Variation: 10% (for 0.05 to 0.3 %), 5% (for 0.3 to 1 %)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 45 seconds per pump stroke | ||
| Detecting Limit | 0.005% (n=1) | ||
| Colour Change | White → Yellowish brown (dark brown at demarcation) | ||
| Reaction Principle | Cl2C:CHCl+ I2O5 + H2S2O7 → I2 | ||
| Coefficient of Variation | 10% (for 0.05 to 0.3 %), 5% (for 0.3 to 1 %) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Temperature correction is necessary | ||
| Store the tubes at cool and dark place. | |||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Carbon Monoxide |  0.1% |
+ | Dark brown |
| Acetylene | 0.1% |
+ | Dark brown |
| Acetone |  6 times |
No | Brown |
| Ethylene | 0.5% |
+ | Dark brown |
| Toluene, Xylene | 3 times |
No | Brown |
| HCs (C3) |
+ | Dark brown | |
| Tetrachloroethylene | + | Yellowish brown | |
| 1,1,1-Trichloroethane | + | Yellowish brown(ring) |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Tetrachloroethylene | 1.5 | 1 | 0.075 to 1.5% |
| Calibration gas generation | Static gas dilution method |
| TLV-TWA | TLV-STEL | Explosive range |
| 10 ppm(2014) | 25 ppm(2014) | - |
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