Fig. 3
Treated samples of fair condition (a unaged, b aged). Left picture (I): Variant 4, CNF B; right picture (II): Variant 5, CNF B. The shadow on the right sample paper was caused by its curvature
Fig. 3 | Heritage Science
Treated samples of fair condition (a unaged, b aged). Left picture (I): Variant 4, CNF B; right picture (II): Variant 5, CNF B. The shadow on the right sample paper was caused by its curvature
