Table 1.
Results of the full system recovery test.
| Variable | Assay 1 | Assay 2 | Assay 3 | Assay 4 | Assay 5 | Assay 6 | Mean | Stand Dev. |
|---|---|---|---|---|---|---|---|---|
| Volume of air flow through the chamber, L/min | 494.7 | 500.9 | 501.4 | 501.5 | 501.5 | 499.6 | 499.9 | 2.6 |
| Duration of assay, min | 30.9 | 59.0 | 22.9 | 21.0 | 19.2 | 103 | 42.9 | |
| Volume of air through the chamber, m3 | 15.4 | 29.5 | 11.4 | 10.5 | 9.2 | 52.0 | 21.4 | 16.7 |
| CH4 released, g | 5.3 | 7.7 | 2.8 | 3.1 | 2 | 28.5 | 8.2 | 10.1 |
| CH4 measured, g | 5.2 | 8.2 | 3.0 | 3.2 | 2.0 | 28.5 | 8.4 | |
| Ambient CH4 entering the chamber, % | 0.0031 | 0.0018 | 0.0017 | 0.0017 | 0.0016 | 0.0010 | 0.0020 | 0.0006 |
| Methane recovery rate | 0.99 | 1.07 | 1.12 | 1.05 | 1.01 | 0.99 | 1.04 | 0.05 |