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Homepage>CSN Standards>50 PAPER INDUSTRY PRODUCTS>5004 Paper, testing>CSN EN 648 - Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board
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Released: 01.06.2019
CSN EN 648 - Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board

CSN EN 648

Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board

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Number of Standard:CSN EN 648
Category:500488
Pages:16
Released:01.06.2019
Catalog number:507703
DESCRIPTION

CSN EN 648

CSN EN 648 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.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.