The AGA-8 Gas Composition Properties section allows you to enter the range of the fractional values of the components where they cannot be predetermined. The gas components shown below are in Mole Fractions (you can multiply the values by 100 to convert to percentages). Two ranges are shown for each gas component. The Realflo driver accepts any value in the Expanded Range, however, the calculation may not produce a result, or accuracy may be reduced if the values are outside the Normal Range.
| Parameters and Values | Units | Realflo Display |
|---|---|---|
| Methane CH4 | 0.45 to 1.00 | 0 to 1.00 |
| Nitrogen | 0 to 0.50 | 0 to 1.00 |
| Carbon Dioxide | 0 to 0.30 | 0 to 1.00 |
| Ethane C2H6 | 0 to 0.10 | 0 to 1.00 |
| Propane C3H8 | 0 to 0.04 | 0 to 0.12 |
| Water | 0 to 0.0005 | 0 to 0.03 |
| Hydrogen Sulfide | 0 to 0.0002 | 0 to 1.00 |
| Hydrogen | 0 to 0.10 | 0 to 1.00 |
| Carbon Monoxide | 0 to 0.03 | 0 to 0.03 |
| Oxygen | 0 | 0 to 0.21 |
|
Total Butanes
|
0 to 0.01 | 0 to 0.06 |
|
Total Pentanes
|
0 to 0.01 | 0 to 0.04 |
|
Total Hexane Plus
|
0 to 0.03 | 0 to 0.04 |
| Helium | 0 to 0.02 | 0 to 0.03 |
| Argon | 0 | 0 to 0.01 |
Further Information
For more detailed information on these properties, see the documentation provided with the Realflo application.
Refer to the AGA-8 Standard for discussions on the uncertainty in the two ranges.