SIST EN 648:2019
(Main)Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board
Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board
This document describes procedures for the testing of the fastness of fluorescent whitened paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given.
Visual absence of the glass fibre paper’s fluorescence under UV light is evaluated.
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 can also be used.
Papier und Pappe vorgesehen für den Kontakt mit Lebensmitteln - Bestimmung der Farbechtheit von optisch aufgehelltem Papier und Pappe
Dieses Dokument legt ein Verfahren zur Prüfung der Farbechtheit von optisch aufgehelltem Papier und Pappe, die für den Kontakt mit Lebensmitteln bestimmt sind, fest. Es werden verschiedene Varianten angegeben, je nach vorhersehbarer Nutzung des vorhandenen Werkstoffs.
Die visuelle Abwesenheit der Fluoreszenz des Glasfaserpapiers unter UV-Licht wird bewertet.
Bei Proben mit wesentlich unterschiedlichen Seiten kann es zu einer Migration von einer Glasfaser zur anderen kommen, was wiederum zur falschen Interpretation der Farbechtheit auf einer Seite führen könnte. Es ist empfehlenswert, diese Proben im großen Probenahmeverfahren zu prüfen, um eine Querkontamination der Glasfasern während des Migrationsvorgangs zu vermeiden. Das Verfahren ist in Anhang A beschrieben. Wenn niedrigere Nachweisgrenzen gefordert sind, kann dieses Verfahren ebenfalls zur Anwendung kommen.
Papier et carton destinés à entrer en contact avec les denrées alimentaires - Détermination de la solidité du papier et du carton blanchis par des agents d'azurage fluorescents
Le présent document décrit les modes opératoires d’essai pour déterminer la solidité du papier et du carton destinés à entrer en contact avec les denrées alimentaires, blanchis par des agents d’azurage fluorescents. Plusieurs modes opératoires selon l’utilisation prévisible du matériau sont décrits.
Un examen visuel à la lumière ultraviolette permet d’évaluer l’absence de fluorescence du papier en fibres de verre.
Pour les échantillons dont les faces sont sensiblement différentes, une migration peut se produire d’une fibre de verre à l’autre et peut conduire à une mauvaise interprétation de la solidité d’une face. Il est recommandé de vérifier ces échantillons à l’aide d’un mode opératoire d’échantillonnage utilisant des échantillons de grande taille afin d’empêcher la contamination croisée de la fibre de verre au cours de la procédure de migration. Le mode opératoire est décrit à l’Annexe A. Si une limite de détection inférieure est requise, ce mode opératoire peut également être utilisé.
Papir, karton in lepenka, namenjeni za stik z živili - Ugotavljanje svetlobne obstojnosti papirja, kartona in lepenke, ki vsebujejo optična belila
Ta dokument opisuje postopke za preskušanje obstojnosti fluorescentnega beljenega papirja in kartona, namenjenega za stik z živili. Podani so nekateri postopki, odvisni od predvidene uporabe materiala. Oceniti je treba vidno odsotnost fluorescence pod UV-žarki. OPOMBA: Pri vzorcih, katerih strani se precej razlikujejo, lahko pride do prehajanja iz enega steklenega vlakna v drugega, kar lahko privede do napačnega prepoznavanja obstojnosti ene strani. Te vzorce je treba pregledati s postopkom velikega vzorčenja, da se prepreči navzkrižna kontaminacija steklenih vlaken med postopkom prehajanja. Postopek je opisan v dodatku A. Če je potrebna spodnja meja zaznavanja, se lahko uporabi tudi ta postopek.
General Information
Relations
Overview
SIST EN 648:2019 is a European standard developed by CEN that specifies the procedures for determining the fastness of fluorescent whitened paper and board intended for food contact applications. This standard is critical for ensuring that fluorescent whitening agents (FWA) used in paper and board do not migrate undesirably to food products, which could impact safety and quality.
The document outlines methods to visually assess the resistance (fastness) of fluorescent whitening agents when paper or board materials are exposed to various test fluids under controlled conditions. SIST EN 648:2019 supersedes the previous 2006 version with updated scope, testing fluids, and definitions to better align with contemporary food contact situations.
Key Topics
Fastness Testing Principle
The core principle involves placing the test material in contact with glass fibre papers saturated with specific test fluids. After exposure under defined temperature and duration conditions, the transfer of fluorescent whitening agents is evaluated under UV-A light by comparison with reference papers.Test Fluids and Conditions
Different fluids simulate realistic food contact scenarios, including:- Distilled or deionized water
- 3% aqueous acetic acid
- Alkaline salt solution (pH ~8.6)
- Vegetable oil (per EU regulations)
These fluids are used under defined temperatures and durations simulating short to long-term and hot or cold contact.
Glass Fibre Papers
Unstained glass fibre papers with specific characteristics (grammage, pH, absence of fluorescent agents and cellulosic fibres) are used to detect migration of whitening agents visually.Comparison Papers and Evaluation
A series of fluorescent whitened comparison papers with graduated concentrations of whitening agents are prepared to enable a graded evaluation (1–5) of fastness. Grade 1 indicates poor fastness (significant migration), while grade 5 indicates excellent fastness.Large Sample Testing
Annex A provides guidance for testing large samples to prevent cross-contamination in materials with significantly different sides, ensuring accurate interpretation of fastness results.
Applications
Food Packaging Materials
SIST EN 648:2019 is vital for manufacturers of paper and board packaging intended for food contact, ensuring compliance with regulatory safety requirements regarding migration of fluorescent agents.Quality Control & Product Development
Enables producers and laboratories to assess and improve the resistance of paper and board materials to fluorescent whitening agent migration under simulated real-world conditions.Regulatory Compliance
Supports conformity with EU and other international guidelines for materials in contact with food, reducing potential health risks associated with chemical migration.Material Selection
Allows developers to select suitable paper and board grades with appropriate fastness properties for specific food contact applications, including hot and oily foods.
Related Standards
EN ISO 186: Sampling to Determine Average Quality of Paper and Board
Specifies sampling procedures for collecting representative test samples for consistency and reliability.EN ISO 3696: Water for Analytical Laboratory Use
Defines water quality standards essential for preparing test fluids used in EN 648 procedures.ISO 6588-2: Determination of pH of Aqueous Extracts of Paper and Board
Provides methods to measure pH in hot water extract, relevant for characterizing glass fibre papers used in tests.
Summary
SIST EN 648:2019 delivers a comprehensive framework for evaluating the fastness of fluorescent whitening agents in paper and board materials intended for direct or indirect food contact. By simulating various food contact environments and providing standardized assessment methods, this standard plays a critical role in ensuring product safety, regulatory compliance, and quality assurance within the food packaging industry.
Keywords: SIST EN 648:2019, fluorescent whitening agents, food contact paper, paper fastness testing, fluorescent whitened board, CEN standards, food packaging safety, migration testing, fluorescent fastness, food contact materials, glass fibre paper, paper and board testing.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2019
1DGRPHãþD
SIST EN 648:2007
3DSLUNDUWRQLQOHSHQNDQDPHQMHQL]DVWLN]åLYLOL8JRWDYOMDQMHVYHWOREQH
REVWRMQRVWLSDSLUMDNDUWRQDLQOHSHQNHNLYVHEXMHMRRSWLþQDEHOLOD
Paper and board intended to come into contact with foodstuffs - Determination of the
fastness of fluorescent whitened paper and board
Papier und Pappe vorgesehen für den Kontakt mit Lebensmitteln - Bestimmung der
Farbechtheit von optisch aufgehelltem Papier und Pappe
Papier et carton destinés à entrer en contact avec les denrées alimentaires -
Détermination de la solidité du papier et du carton blanchis par des agents d'azurage
fluorescents
Ta slovenski standard je istoveten z: EN 648:2018
ICS:
67.250 Materiali in predmeti v stiku z Materials and articles in
živili contact with foodstuffs
85.060 Papir, karton in lepenka Paper and board
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 648
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2018
EUROPÄISCHE NORM
ICS 67.250; 85.060 Supersedes EN 648:2006
English Version
Paper and board intended to come into contact with
foodstuffs - Determination of the fastness of fluorescent
whitened paper and board
Papier et carton destinés à entrer en contact avec les Papier und Pappe vorgesehen für den Kontakt mit
denrées alimentaires - Détermination de la solidité du Lebensmitteln - Bestimmung der Farbechtheit von
papier et du carton blanchis par des agents d'azurage optisch aufgehelltem Papier und Pappe
fluorescents
This European Standard was approved by CEN on 22 July 2018.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 648:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Materials and equipment . 5
6 Reagents . 5
7 Sampling . 6
8 Preparation of sample . 6
9 Procedure. 6
10 Test conditions . 7
11 Comparison papers . 7
11.1 Solutions for comparison papers . 7
11.2 Preparation of fluorescent whitened comparison papers . 7
12 Evaluation . 8
13 Test report . 8
Annex A (informative) Determination of the fastness of fluorescent whitened paper and
board on large samples . 9
A.1 Scope . 9
A.2 Preparation of large samples . 9
A.3 Test report . 9
Bibliography . 10
European foreword
This document (EN 648:2018) has been prepared by Technical Committee CEN/TC 172 “Pulp, paper
and board”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2019, and conflicting national standards shall be
withdrawn at the latest by May 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 648:2006.
With regard to EN 648:2006 the following changes have been made:
a) Clause 1 “Scope” has been revised and extended;
b) in Clause 6 “Reagents” the test fluid “saliva simulant ” has been removed and the test fluid “alkaline
salt solution” has been introduced;
c) new test conditions, matching the use of the tested papers and boards;
d) new definition for the glass fibre paper;
e) editorial changes.
Attention shall be drawn to the fact that the glass fibre papers have not been duly validated before the
publication of this standard.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This document describes procedures for the testing of the fastness of fluorescent whitened paper and
board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable
use of the material are given.
Visual absence of the glass fibre paper’s fluorescence under UV light is evaluated.
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
can also be used.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 186, Paper and board - Sampling to determine average quality (ISO 186)
EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696)
ISO 6588-2, Paper, board and pulps - Determination of pH of aqueous extracts – Part 2: Hot extraction
3 Terms and definitions
For the purposes of this document, the following term and definition applies.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
fastness
ineffective transfer of fluorescent whitening agent from paper, to a glass fibre paper saturated with a
test fluid and evaluated visually under UV-light against a series of comparison papers
4 Principle
A sample is brought into contact with glass fibre papers which have been saturated with a test fluid and
placed under load for a given time. The stai
...
Frequently Asked Questions
SIST EN 648:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board". This standard covers: This document describes procedures for the testing of the fastness of fluorescent whitened paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given. Visual absence of the glass fibre paper’s fluorescence under UV light is evaluated. 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 can also be used.
This document describes procedures for the testing of the fastness of fluorescent whitened paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given. Visual absence of the glass fibre paper’s fluorescence under UV light is evaluated. 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 can also be used.
SIST EN 648:2019 is classified under the following ICS (International Classification for Standards) categories: 67.250 - Materials and articles in contact with foodstuffs; 85.060 - Paper and board. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 648:2019 has the following relationships with other standards: It is inter standard links to SIST EN 648:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 648:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
The SIST EN 648:2019 standard provides a robust framework for determining the fastness of fluorescent whitened paper and board designed for contact with foodstuffs. This document is essential for industries involved in packaging and food safety, addressing both the need for quality control and compliance with safety regulations. The scope of this standard is clear and focused, detailing specific testing procedures that are necessary to evaluate the fastness of fluorescent whitened materials. By assessing how these materials behave when in contact with foodstuffs, the standard ensures that potential risks related to fluorescence migration are minimized, thus protecting consumer safety. One of the strengths of SIST EN 648:2019 lies in its comprehensive testing methods, particularly in regards to the visual assessment of glass fiber paper under UV light. This evaluation is crucial, as it helps to ascertain whether any fluorescence may leach into food products, a common concern for manufacturers and regulatory bodies. The inclusion of procedures for samples with significantly different sides further enhances the reliability of the results, as it acknowledges the potential for migration and cross-contamination between sides. Moreover, the guidance provided in Annex A for dealing with lower limits of detection demonstrates the standard's commitment to thoroughness. It ensures that manufacturers can achieve high levels of precision and accuracy in their assessments, fostering trust in the quality of their materials. Overall, the SIST EN 648:2019 standard is highly relevant to modern packaging practices. Its focus on food safety, practical testing procedures, and attention to detail positions it as a vital document for any organization involved in the production or regulation of paper and board materials intended for food contact. By adhering to this standard, companies can significantly enhance the safety and reliability of their products, thus aligning themselves with best practices in the industry.
SIST EN 648:2019は、食品に接触することを意図した紙およびボードに関する標準であり、蛍光漂白された紙やボードの耐久性を評価するための手法を詳述しています。この標準は、食品安全の観点から非常に重要であり、使用におけるさまざまなシナリオを考慮した試験プロセスを提供します。 この文書の強みは、特に蛍光性のガラス繊維紙に関するテスト手順に明確に焦点を当てている点です。UV光照射下での蛍光の視覚的欠如を評価することにより、製品の品質管理において実用的な洞察を提供しています。また、異なる側面を持つサンプルについての考慮もあり、片側からもう片側への移行が誤った解釈を生む可能性に対処しています。この点は、試験の精度を向上させるための重要な側面です。 さらに、移行プロセス中のガラス繊維の交差汚染を防ぐための大規模なサンプリング手法を提案していることも、この標準の特徴です。その結果、サンプルの信頼性が向上し、実際の使用条件に適した結果が得られるようになります。附属書Aで詳述された手順は、低い検出限界が求められる場合にも利用できるため、柔軟性に富んだ標準として評価されます。 このSIST EN 648:2019は、食品に接触する紙およびボードの安全性と品質を確保するために、業界において欠かせない指針となります。その内容は、製造業者および規制当局の両方にとって信頼性の高い基準を提供し、消費者保護の観点からも不可欠です。
SIST EN 648:2019 표준 문서는 식품과 접촉할 목적으로 제작된 종이 및 판지의 형광 표백 특성의 내구성을 시험하는 절차를 상세히 설명하고 있습니다. 이 문서는 다양한 용도에 따라 예상되는 사용 방식에 맞춘 여러 시험 절차를 제시하여, 식품 안전성을 보장하는 데 중요한 역할을 합니다. 이 표준의 강점은 복잡한 환경에서도 형광 화이트 페이퍼와 판지의 내구성을 신뢰성 있게 평가할 수 있는 체계적인 방법론을 제공한다는 점입니다. 특히, UV 광선 아래에서 투명한 유리 섬유 종이의 형광 부재를 평가하는 과정은 특정 재료의 안전성을 확인하는 데 필수적입니다. 또한, 샘플의 양면에서의 형광 특성 차이에 따른 오염 가능성을 최소화하기 위한 대규모 샘플링 절차에 관한 안내가 포함되어 있어, 이로 인해 형광이 잘못 해석되는 위험을 줄여줍니다. 이러한 점은 다양한 기계적 및 화학적 환경에서의 내구성을 높이는 데 있어 매우 중요합니다. 총체적으로, SIST EN 648:2019은 식품과 접촉하는 종이 및 판지의 안전성을 보장하기 위한 중요한 기준을 마련하고 있으며, 이 표준의 적용은 식품 포장재 산업에서의 품질 및 안전성 향상에 중대한 기여를 할 것입니다.
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