This European Standard describes the preparation of a cold water extract for investigations of certain extractives in paper and board intended to come into contact with foodstuffs.
DS/EN 645:1993 history
1993DS/EN 645:1994 paper and board intended to come into contact with foodstuffs. Preparation of a cold water extract
1993DS/EN 645:1993 Paper and board intended to come into contact ith foodstuffs - Preparation of a cold water xtract