This document describes procedures for the testing of the fastness of fluorescent whitened paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given. Visual absence of the glass fibre paper??s fluorescence under UV light is evaluated. For samples having significant different sides@ a migration can occur from one glass fibre to the other and could lead to wrong interpretation of the fastness of one side. It is advisable to check these samples using large sampling procedure to prevent cross contamination of the glass fibre during the migration procedure. The procedure is described in Annex A. If lower limit of detection is required@ this procedure can also be used.
EN 648:2018 history
2018EN 648:2018 Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board
2006EN 648:2006 Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board
2003EN 648:2003 Paper and board intended to come into contact with foodstuffs Determination of the fastness of fluorescent whitened paper and board
1993EN 648:1993 Paper and Board Intended to Come into Contact with Foodstuffs - Determination of the Fastness of Fluorescent Whitened Paper and Board