| Specification | Coniferous Tall Oil (CTO) | |
|---|---|---|
| Acid number, mg KOH/g oil, min. | 140 | |
| Appearance | Brown oily product | |
| Mass fraction of non-soapifiable matter, %, max. | 15 | |
| Mass fraction of resin acids, %, min. | 30 | |
| Mass fraction of lignin and mechanical impurities, %, max. | 0.2 | |
| Mass fraction of water, % | 1.2 | |