Extraneous matterNot more than 1.0% by weight
Total ash (Unbleached)Not more than 8.0% by weight
Total ash (Bleached)Not more than 12.0% by weight
Calcium as CaO (Unbleached)Not more than 1.1% by weight
Calcium as CaO (Bleached)Not more than 2.5% by weight
Volatile oil contentNot less than 1.5% v/w
Insect damaged matterNot more than 1.0% by weight