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Homepage>BS Standards>67 FOOD TECHNOLOGY>67.250 Materials and articles in contact with foodstuffs>BS EN 646:2018 - TC Tracked Changes. Paper and board intended to come into contact with foodstuffs. Determination of colour fastness of dyed paper and board
immediate downloadReleased: 2020-02-26
BS EN 646:2018 - TC Tracked Changes. Paper and board intended to come into contact with foodstuffs. Determination of colour fastness of dyed paper and board

BS EN 646:2018 - TC

Tracked Changes. Paper and board intended to come into contact with foodstuffs. Determination of colour fastness of dyed paper and board

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Standard number:BS EN 646:2018 - TC
Released:2020-02-26
ISBN:978 0 539 10101 0
Status:Tracked Changes
DESCRIPTION

BS EN 646:2018 - TC


This standard BS EN 646:2018 - TC Tracked Changes. Paper and board intended to come into contact with foodstuffs. Determination of colour fastness of dyed paper and board is classified in these ICS categories:
  • 67.250 Materials and articles in contact with foodstuffs
  • 85.060 Paper and board
This document describes procedures for the testing of dyed paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given. Visual evaluation against a grey scale provides grading of the bleeding. 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 could also be used.