2019DIN EN 646:2019-02 Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board; German version EN 646:2018
2019DIN EN 646:2019 Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board
2006DIN EN 646:2006 Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board; German version EN 646:2006