| Ethyl acetate | CH3CO2C2H5 | NO.141 |
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| Performance |
|
Measuring Range |
0.1 to 1.5% |
|
Number of Pump Stroke |
1 |
|
Correction Factor |
1 |
|
Sampling Time |
2 minutes per pump stroke |
|
Detecting Limit |
0.01% (n=1) |
|
Color Change |
Orange |
|
Reaction Principle |
CH3CO2C2H5 + Cr6++ H2SO4 |
| Coefficient of Variation |
10% (for 0.04 to 0.3 %), 5% (for 0.3 to 1.5 %) |
| 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) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Sulfur dioxide |
500 ppm |
Plus error |
Discolors green |
|
Hydrogen sulfide |
500 ppm |
Plus error |
Discolors dark green |
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Alcohols, Esters, Ketones |
Plus error |
Discolors dark green |
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Propane |
0.2% |
Plus error |
Dark green (whole layer) |
|
Aromatic HCs |
500 ppm |
Plus error |
Discolors dark green |
| Other substance measurable with this detector tube |
|
Substance |
Correction |
Pump Strokes |
Measuring Range |
|
Vinyl acetate |
Factor: 0.6 |
1 |
0.02 to 0.9% |
| Calibration gas generation | Static gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 400ppm | - | 2 to 11.5% |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Dark green
Cr3+