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Norm

ÖNORM EN 646

Issue date: 2019 02 01

Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed 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...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 10 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
Committee 148: Pulp, paper and board
ICS
67.250 85.060
Topics
Mechanical & plant engineering, Plants and equipment for the food industry, Materials and articles in contact with foodstuffs Agriculture & food, Plants and equipment for the food industry, Materials and articles in contact with foodstuffs Chemistry, paper & textiles, Paper. Board, 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.
ÖNORM EN 646
2019 02 01
Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of ...
Norm
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ÖNORM EN 646
2006 07 01
Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of ...
Norm
ÖNORM EN 646
2000 12 01
Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of ...
Norm
ÖNORM EN 646
1994 03 01
Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of ...
Norm
Historie aufklappen
Norm
ISO 6588-2:2020
Issue date : 2020 03 04
Paper, board and pulps — Determination of pH of aqueous extracts — Part 2: Hot extraction