EU Publishes New Standard for Color Fastness in Food Contact Paper and Board - EN 646
03/22/2019

CEN issues revised version of EN 646 - 'Paper and Board Intended to Come into Contact with Foodstuffs'

Online PR News – 22-March-2019 – Geneva, Switzerland – The European Committee for Standardization (CEN) has issued an updated version of its standard for determining color fastness in food contact paper and board that is dyed. Published in November 2018, EN 646:2018 replaces the 2006 iteration of the standard.

EN 646:2018 'Paper and Board Intended to Come into Contact with Foodstuffs - Determination of Color Fastness of Dyed Paper and Board', contains several important changes, of which stakeholders should be aware. These include:

Revising and extending the scope of food contact paper. Now includes:
Testing of food contact dyed paper and board
Visual evaluation against grey scale for bleeding
Some procedures are dependent on the foreseeable use of food contact materials
New definition for (unstained) glass fiber paper, includes a pH-value of 9.0 to 9.5 (ISO 6588-2) as one of the conditions
Replacing 'saliva simulant' with 'alkaline salt solution' for reagent
Expansion of the number of test condition procedures from two to four (A to D):
A. Long Duration Contacts: (23 ± 2) °C for 24 hours
B. Medium Duration contacts: (23 ± 2) °C for 4 hours
C. Short duration contacts: (23 ± 2) °C for 10 minutes
D. Hot Contacts:
Fatty food - (120 ± 3) °C for 0.5 hours in oil
Moist food - (90 ± 3) °C for 0.5 hours in water
Evaluation only against gray scale

EN 646:2018 requires Member States to withdraw conflicting national standards by May 2019. Stakeholders are now advised to check their products conform to the latest European standard.

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For further information contact:

Hingwo Tsang
Global Information and Innovation Manager
Tel:(+852) 2774 7420
Email: crs.media@sgs.com

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