Gastec 8HH Quick-measuring Detector tubes Chlorine Cl2 (0.25~10%)
ManufacturerGastec(View more products from this manufacturer)
Model8HH
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Indicator: 0.5 to 10%
Measuring Range:
+ 0.25 to 0.5%, Number of Pump Strokes 1
+ 0.5 to 10%, Number of Pump Strokes 1/2
Sampling Time: per pump stroke
Colour Change: Reddish purple → Yellow
Reaction Principle: Cl2 + Indicator → Yellow products
Coefficient of Variation: 10% (for 0.5 to 3 %), 5% (for 3 to 10 %)
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 | 30 seconds per 1/2 pump stroke | ||
| Detecting Limit | 0.05% (n=1) | ||
| Colour Change | Reddish purple → Yellow | ||
| Reaction Principle | Cl2 + Indicator → Yellow products | ||
| Coefficient of Variation | 10% (for 0.5 to 3 %), 5% (for 3 to 10 %) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Unnecessary | ||
| Store the tubes at cool and dark place. | |||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Hydrogen chloride | + | Pink | |
| Nitric acid | + | Pink |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Hydrogen chloride | 3.0 | 1/2 | 1.5 to 30 % |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.5 ppm | 1 ppm |
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