We should know the amount of soluble material in alcohol 90ºC boiling+ in trade and marketing Galbanum dry gum is known as gum.
In order to grading Galbanum quality, we should know the amount of soluble material in alcohol 90ºC boiling. Accordingly, 4 types of standard Galbanum are characterized.
| Galbanum type | amount of soluble material in alcohol 90ºC boiling |
| Premium | Up to 10% |
| Grade 1 | 11-25% |
| Grade 2 | 26-35% |
| Grade 3 | 36-50% |
| Ash should not be higher than 10% in none of the Galbanum types. | |
Galbanum commercial classification
There also is another classification for Galbanum in commerce. In fact, in trade and marketing Galbanum dry gum is known as gum and 3 types of gums are listed.
| Gum Arabic |
| Gum tragacanth |
| Gum careya |
