Paper and board intended to come into contact with foodstuffs - Determination of dry matter content in an aqueous extract; German version EN 920:1998— 6 стр.
Paper and board intended to come into contact with foodstuffs - Determination of dry matter content in an aqueous extract; German version EN 920:2000— 7 стр.
Paper and board intended to come into contact with foodstuffs - Determination of dry matter content in an aqueous extract; German version EN 920:2000— 7 стр.