Gastec 80 Quick-measuring Detector tubes Acid gases (1~80 ppm)
ManufacturerGastec(View more products from this manufacturer)
Model80
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Indicator: 2 to 40 ppm
Measuring Range:
+ 1 to 2 ppm, Number of Pump Strokes 4
+ 2 to 40 ppm, Number of Pump Strokes 2
+ 40 to 80 ppm, Number of Pump Strokes 1
Sampling Time: 30 seconds per pump stroke
Colour Change: Pale bluish purple → Yellow
Coefficient of Variation: 10% (for 2 to 40 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 | 30 seconds per pump stroke | |||
| Detecting Limit | 0.5 ppm (n=4) | |||
| Colour Change | Pale bluish purple → Yellow | |||
| Reaction Principle | Acid gases react with detecting layer to produce yellow stain. | |||
| Coefficient of Variation | 10% (for 2 to 40 ppm) | |||
| Shelf Life | 2 Years | |||
| Corrections for temperature & humidity | Unnecessary | |||
| Store the tubes in dark and cool place | ||||
Other substance measurable with this detector tube
| Substance | Corrction | No. of pump strokes | Measuring Range |
| Hydrogen chloride | 4 | 2 | 8 to 160ppm |
| Chlorine | 0.35 | 2 | 0.7 to 14ppm |
| Nitric acid | 2.5 | 2 | 5 to 100ppm |
| sulphur dioxide | 0.75 | 2 | 1.5 to 30ppm |
| Nitrogen dioxide | 0.1 | 2 | 0.2 to 4ppm |
| Iodine | 0.06 | 2 | 0.12 to 2.4ppm |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
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