Table 2.
Results of standardized methods for the characterization of samples of biodiesel.
| Parameters | Moisture | Index Total Acidity | Total Glycerol | Free Glycerol | Methanol |
|---|---|---|---|---|---|
|
| |||||
| Methods | AOCS Ca2e-84 | AOCS Ca5a-40 | EN 14105 | AOCS Ca14-56 | EN 14110 |
|
| |||||
| Maximum Standards (ANP 07/2008) | 500 mg·kg−1 | 0.5 mg·KOH·g−1 | 0.25% Weight | 0.02% Weight | 0.2% Weight |
| Soybean A (BSa) | 601 | 0.42 | 1.72 | 0.20 | 0.184 |
| Soybean 1B (BSb) | 310 | 0.35 | 0.15 | 0.013 | 0.154 |
| Soybean 2B (BSb) | 326 | 0.38 | 0.16 | 0.009 | 0.165 |
| Soybean 3B (BSb) | 305 | 0.32 | 0.14 | 0.011 | 0.147 |
| Corn (BMa) | 350 | 0.30 | 0.22 | 0.012 | 0.134 |
| Palm (BPa) | 427 | 0.37 | 0.23 | 0.013 | 0.152 |
| Canola B (BCb) | 433 | 0.51 | 0.26 | 0.018 | 0.179 |
| Cotton A (BAa) | 343 | 0.45 | 0.15 | 0.003 | 0.145 |
| Cotton B (BAb) | 356 | 0.42 | 0.17 | 0.006 | 0.167 |
| Sunflower A (BGa) | 458 | 0.49 | 0.24 | 0.009 | 0.145 |
| Sunflower B (BGb) | 489 | 0.43 | 0.11 | 0.012 | 0.153 |