Gastec 14L Quick-measuring Detector tubes Hydrogen chloride HCl (0.2-76ppm)
ManufacturerGastec(View more products from this manufacturer)
Model14L
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Indicator: 1 to 20 ppm
Measuring Range:
+ 0.2 to 1 ppm, Number of Pump Strokes 2 to 5
+ 1 to 20 ppm, Number of Pump Strokes 1
+ 20 to 76 ppm, Number of Pump Strokes 1/2
Sampling Time: per pump stroke
Colour Change: Yellow → Pink
Coefficient of Variation: 10% (for 1 to 5 ppm), 5% (for 5 to 20 ppm)
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 | 0.05 ppm (n=5) | |||
| Colour Change | Yellow → Pink | |||
| Reaction Principle | Hydrogen chloride reacts with indicator to produce pink stain. HCl + Indicator → Chemical reaction compound |
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| Coefficient of Variation | 10% (for 1 to 5 ppm), 5% (for 5 to 20 ppm) | |||
| 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 |
| Chlorine | 1/2 | + | Pink |
| Nitric Acid | 1/10 | + | Pink |
| sulphur dioxide | 10 times | + | Pink |
| Nitrogen dioxide | 5 times | + | Pink |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 2 ppm | - |
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