| Acetone | CH3COCH3 | NO.151 | |
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| Performance |
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Measuring Range |
0.05 to 0.8% |
0.8 to 2.0% |
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Number of Pump Strokes |
2 |
1 |
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Correction Factor |
1 |
2.5 |
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Sampling Time |
2 minutes per pump stroke |
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Detecting Limit |
0.003% (n=2) |
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Color Change |
Orange |
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Reaction Principle |
CH3COCH3 + K2Cr2O7 + H2SO4 + H2O  Cr2(SO4)3 |
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| Coefficient of Variation | 10% (for 0.01 to 0.2 %), 5% (for 0.2 to 0.8 %) | |
| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Temperature correction is necessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
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Substance |
Concentration |
Interference |
Change color by itself |
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Sulfur dioxide |
500 ppm |
Plus error |
Produce green stain |
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Hydrogen sulfide |
500 ppm |
Plus error |
Produce dark green |
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Alcohols, Esters, Ketones |
- |
Plus error |
Produce dark green stain |
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Propane |
0.2% |
Yes |
Produce dark green for whole layer |
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Aromatic HCs. |
500 ppm |
Plus error |
Produce dark green |
| Other substance measurable with this detector tube |
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Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
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Cyclohexene |
1.0 |
1 |
0.05 to 0.8% |
| Calibration gas generation | Static gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 500ppm | 750ppm | 2.1 to 13% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Dark green