Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board; German version EN 646:2000— 6 стр.
Paper and board intended to come into contact with foodstuffs; determination of colour fastness of dyed paper and board; German version EN 646:1993— 4 стр.
Paper and board intended to come into contact with foodstuffs; determination of colour fastness of dyed paper and board; German version EN 646:1993— 4 стр.