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

Comment end date 2026-07-21

Export comments Read draft and comment

Project stage codes

1. Prioritetinių darbo temų pažymėjimas ir ekspertų skyrimas

2. Projektas

3. Viešoji apklausa

From 2026-05-22 till 2026-07-21

4. Closure of enquiry

5. Submission to Formal Vote

Organisation

CEN Europos standartizacijos komitetas

ICS

85.060 - Paper and board

Technical Committee

TK 70 Pulp, paper, board, adhesives

ForeignTC'S

CEN/TC 172

Number of comments

Comment start date

2026-05-22

Scope

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.

Relations

Pakeis

prEN 646