Gastec 14M Quick-measuring Detector tubes Hydrogen chloride HCl (10-1000ppm)
ManufacturerGastec(View more products from this manufacturer)
Model14M
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Indicator: 20 to 500 ppm
Measuring Range:
+ 10 to 20 ppm, Number of Pump Strokes 2
+ 20 to 500 ppm, Number of Pump Strokes 1
+ 500 to 1000 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Yellow → Red
Coefficient of Variation: 10% (for 20 to 100 ppm), 5% (for 100 to 500 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 | 2.5 ppm (n=2) | |||
| Colour Change | Yellow → Red | |||
| Reaction Principle | Hydrogen chloride reacts with indicator to produce red stain. HCl + Indicator → Chemical reaction compound |
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| Coefficient of Variation | 10% (for 20 to 100 ppm), 5% (for 100 to 500 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 |
| Hydrogen fluoride |  600 ppm |
No | Red( 600 ppm) |
| Nitric Acid | 1/10 time |
+ | Red |
| Nitrogen dioxide | 1/2 time |
No | Red(500 ppm) |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 2 ppm(2014) | - |
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