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Normas DIN – AENOR
DIN EN 648:2017-03

DIN EN 648:2017-03

Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board; German and English version prEN 648:2017 / Note: Date of issue 2017-02-17

Papier et carton destinés à entrer en contact avec les denrées alimentaires - Détermination de la solidité du papier et du carton blanchis par des agents d'azurage fluorescents; Version allemande et anglaise prEN 648:2017 / Attention: Date de parution 2017-02-17

Papier und Pappe vorgesehen für den Kontakt mit Lebensmitteln - Bestimmung der Farbechtheit von optisch aufgehelltem Papier und Pappe; Deutsche und Englische Fassung prEN 648:2017 / Achtung: Erscheinungsdatum 2017-02-17

Fecha Anulación:
2019-02 /Withdrawn
Equivalencias internacionales:

prEN 648 (2017-03)

Relación con otras normas DIN:

Reemplazada por: DIN EN 648:2019-02

Resumen:
This European Standard 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. These samples should be checked 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.
Keywords:
Bleaches, Bleaching fastness, Board (paper), Brightener, Colour fastness, Definitions, Edible paper, Food packages, Food products, Glass fibres, Materials in contact with food, Materials testing, Packages, Paper, Testing, Testing conditions
47,01
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