| Raw oil | Raw oil | 0% acid | 0% acid | 5% acid | 5% acid | 10% acid | 10% acid | 20% acid | 20% acid |
Metal/ppm | Fe | Cu | Fe | Cu | Fe | Cu | Fe | Cu | Fe | Cu |
Sunflower | 1.70 | 0.25 | 1.50 | 0.21 | 1.30 | 0.20 | 1.10 | 0.18 | 0.80 | 0.10 |
Palm oil | 3.10 | 0.07 | 1.80 | 0.05 | 1.30 | 0.40 | 1.10 | 0.05 | 1.00 | 0.04 |
Cotton oil | 2.60 | 0.35 | 2.13 | 0.30 | 2.00 | 0.25 | 1.70 | 0.20 | 1.21 | 0.10 |