Agarwood is divided into several classes such as super king, triple super, double super, and super which is grouped according to size. The draft of agarwood quality is shown in the following table :
| No. | Quality | Color | Weight (in water) |
Aroma (Burned) |
Resin (%) | Chemical Composition |
|---|---|---|---|---|---|---|
| 1 | Gubal | Black | Sink | Soft Scented | > 50 | Must have sesquiterperna compounds and chromon compound |
| 2 | Sabah | Blacklish Brown | Drift | Scented | 30-49 | Must have sesquiterperna compounds and chromon compound |
| 3 | Tanggung | Black striped brown | Floating | Scented | 20-29 | Have two more sesquiterpena compounds |
| 4 | Kemendangan | Brownish white | Floating | Sightly scented | < 20 | Has one sesquiterpene compound |