Gastec 60 Quick-measuring Detector tubes Phenol C6H5OH (0.4~187ppm)
ManufacturerGastec(View more products from this manufacturer)
Model60
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Indicator:
Measuring Range:
+ 0.4~1ppm, Number of Pump Strokes 4
+ 1~25ppm, Number of Pump Strokes 2
+ 25~62.5ppm, Number of Pump Strokes 1
+ 62.5ppm~187ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Pale yellow → Gray
Reaction Principle: C6H5OH + Ce(NO3)6^2- → C6H5OCe(NO3)5N
Coefficient of Variation: 15% (for 1 to 5 ppm), 10% (for 5 to 25 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 | 1.5 minutes per pump stroke | ||||
| Detecting Limit | 0.1 ppm (n = 4) | ||||
| Colour Change | Pale yellow → Gray | ||||
| Reaction Principle | C6H5OH + Ce(NO3)62- → C6H5OCe(NO3)5N | ||||
| Coefficient of Variation | 15% (for 1 to 5 ppm), 10% (for 5 to 25 ppm) | ||||
| Shelf Life | 2 Years | ||||
| Corrections for temperature & humidity | Temperature correction is necessary | ||||
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. | |||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia | 2000 ppm | Unclear demarcation | White |
| Amines | 2000 ppm | Unclear demarcation | White |
| Cresol | + | Gray |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Naphthalene | by Scale | 2 | 0.5 to 14 ppm |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 5 ppm | - | 3 to 10 % |
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