Gastec 151L Quick-measuring Detector tubes Acetone CH3COCH3 (50 ~ 12000 ppm)
ManufacturerGastec(View more products from this manufacturer)
Model151L
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Indicator: 50 ~ 4000 ppm
Measuring Range:
+ 50 ~ 4000 ppm, Number of Pump Strokes 2
+ 4000 ~ 12000 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: 3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4, H3PO4+ Base → Phosphate
Coefficient of Variation: 15% (for 50 to 500 ppm), 10% (for 500 to 4000 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 | 2 minutes per pump stroke | ||
| Detecting Limit | 5 ppm (n=2) | ||
| Colour Change | Yellow → Red | ||
| Reaction Principle | 3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4 H3PO4+ Base → Phosphate |
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| Coefficient of Variation | 15% (for 50 to 500 ppm), 10% (for 500 to 4000 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 |
| Acrolein, Acetaldehyde | 1/10 time | + | Red |
| Aromatic hydrocarbons | No | No | |
| Methyl isobutyl ketone | + | Red | |
| Methyl ethyl ketone | + | Red |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Methyl ethyl ketone | Factor: 0.42 | 5 | 21 to 1680 ppm |
| Propionaldehyde | Factor: 0.47 | 2 | 24 to 1880 ppm |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 500 ppm(2014) | 750 ppm(2014) | 2.1 to 13% |
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