Norm

NEN-EN 646:2017 Ontw. en

Papier en karton bestemd om in contact te komen met voedingsmiddelen - Bepaling van de kleurechtheid van gekleurd papier en karton

16,10

Over deze norm

Status Ontwerp
Aantal pagina's 9
Gepubliceerd op 01-03-2017
Taal Engels
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. 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 could also be used.

Details

ICS-code 67.250
85.060
Nederlandse titel Papier en karton bestemd om in contact te komen met voedingsmiddelen - Bepaling van de kleurechtheid van gekleurd papier en karton
Engelse titel Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board
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