SIST EN 1541:2002
(Main)Paper and board intended to come into contact with foodstuffs - Determination of formaldehyde in an aqueous extract
Paper and board intended to come into contact with foodstuffs - Determination of formaldehyde in an aqueous extract
This European Standard specifies the determination of formaldehyde in aqueous extracts prepared from paper
and board intended to come into contact with foodstuffs. The limit of determination is 1 mg/kg. This means that
for a paper with a grammage of 100 g/m² the limit of determination will be 0,001 mg/dm².
For contact at room temperature the cold water extract is applied. For paper and board materials intended for
boiling and hot filtering purposes the hot water extract is applied.
Papier und Pappe vorgesehen für den Kontakt mit Lebensmitteln - Bestimmung von Formaldehyd in einem wässrigen Extrakt
1 Anwendungsbereich
Diese Europäische Norm legt die Bestimmung von Formaldehyd im Wasserextrakt von Papier, Karton und Pappe fest, welche für den Kontakt mit Lebensmitteln vorgesehen sind. Die Nachweisgrenze liegt bei 1 mg/kg. Das bedeutet, dass für ein Papier mit einer basisflächenbezogenen Masse von 100 g/m² die Nachweisgrenze bei 0,001 mg/dm² liegen wird.
Für Kontakt bei Raumtemperatur wird der Kaltwasserextrakt angewendet. Für Papier, Karton und Pappe, vorgesehen für Kochzwecke und für Heißfiltrationszwecke, wird der Heißwasserextrakt angewendet.
Papiers et cartons destinés a entrer en contact avec des denrées alimentaires - Détermination du formaldéhyde dans un extrait aqueux
1 Domaine d'application
La présente norme européenne spécifie une méthode pour la détermination du formaldéhyde dans un extrait aqueux préparé à partir de papier et de carton destinés à entrer en contact avec des denrées alimentaires. La limite de détermination est de 1 mg/kg, ce qui correspond à 0,001 mg/dm2 pour un papier de grammage 100 g/m².
Pour des contacts à température ambiante, on applique la méthode d'extraction à froid. Pour des papiers et cartons destinés à l'ébullition et à la filtration à chaud, on applique la méthode d'extraction à chaud.
Papir, karton in lepenka, namenjeni neposrednemu stiku z živili - Določevanje formaldehida v vodnem ekstraktu
General Information
- Status
- Published
- Publication Date
- 30-Apr-2002
- Technical Committee
- VPK - Pulp, paper, board and products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-May-2002
- Due Date
- 01-May-2002
- Completion Date
- 01-May-2002
Relations
- Effective Date
- 01-May-2002
- Effective Date
- 01-May-2002
Overview
EN 1541:2001 is a CEN European Standard for the determination of formaldehyde in aqueous extracts prepared from paper and board intended to come into contact with foodstuffs. It defines a chemical test method (limit of determination 1 mg/kg) and specifies whether to use a cold water extract (room-temperature contact) or a hot water extract (for boiling/hot filtering applications). Example conversion: for paper with grammage 100 g/m² the limit corresponds to 0.001 mg/dm².
Key topics and requirements
- Scope: Measurement of formaldehyde in aqueous extracts from food-contact paper and board.
- Extraction methods: Referenced normative standards for extraction:
- EN 645 - cold water extract
- EN 647 - hot water extract
- Analytical principle: Formaldehyde reacts with pentane-2,4-dione (acetylacetone) in ammonium acetate/acetic acid medium to form 3,5-diacetyl-1,4-dihydrolutidine; absorbance is measured at 410 nm by spectrophotometry.
- Reagents & calibration: Fresh pentane-2,4-dione reagent, formaldehyde stock and dilute standards, blank and reference solutions; calibration curve constructed from known standards after blank subtraction.
- Procedure highlights:
- Two parallel extractions and at least two parallel determinations per extract.
- Reaction step: heating in thermostatic water bath at (60 ± 2) °C, timing and cooling requirements; absorbance measured between 35–60 minutes after incubation.
- Confirmation: Where levels exceed specified limits, confirm by UV scanning (300–500 nm). Standard derivative peak must be 408–411 nm and meet specified absorbance ratio criteria (e.g., 390/410 ≈ 0.843 ± 0.01).
- Performance characteristics: Interlaboratory repeatability and reproducibility data are provided (example: repeatability coefficient of variation <10% at 0.10 mg/dm²; <5% at 0.40 mg/dm²).
- Reporting: Results reported with two significant figures and include extraction method, sample origin, dates, mean result, confirmation outcome, and deviations.
Applications
- Routine laboratory testing of food-contact paper and board (packaging, filter papers, boiling-use materials).
- Compliance verification by manufacturers, independent testing laboratories, and regulatory bodies concerned with food safety and migration of contaminants.
- Quality control in production lines where minimizing formaldehyde migration is required.
Related standards
- EN 645 - Paper and board intended to come into contact with foodstuffs: Preparation of a cold water extract
- EN 647 - Paper and board intended to come into contact with foodstuffs: Preparation of a hot water extract
Keywords: EN 1541:2001, formaldehyde in paper, formaldehyde determination, food contact materials testing, cold water extract, hot water extract, acetylacetone method, UV confirmation, packaging testing.
Frequently Asked Questions
SIST EN 1541:2002 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 formaldehyde in an aqueous extract". This standard covers: This European Standard specifies the determination of formaldehyde in aqueous extracts prepared from paper and board intended to come into contact with foodstuffs. The limit of determination is 1 mg/kg. This means that for a paper with a grammage of 100 g/m² the limit of determination will be 0,001 mg/dm². For contact at room temperature the cold water extract is applied. For paper and board materials intended for boiling and hot filtering purposes the hot water extract is applied.
This European Standard specifies the determination of formaldehyde in aqueous extracts prepared from paper and board intended to come into contact with foodstuffs. The limit of determination is 1 mg/kg. This means that for a paper with a grammage of 100 g/m² the limit of determination will be 0,001 mg/dm². For contact at room temperature the cold water extract is applied. For paper and board materials intended for boiling and hot filtering purposes the hot water extract is applied.
SIST EN 1541:2002 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 1541:2002 has the following relationships with other standards: It is inter standard links to SIST EN 1541:2000, SIST EN 1541:2000/AC:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 1541:2002 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2002
1DGRPHãþD
SIST EN 1541:2000
SIST EN 1541:2000/AC:2000
3DSLUNDUWRQLQOHSHQNDQDPHQMHQLQHSRVUHGQHPXVWLNX]åLYLOL'RORþHYDQMH
IRUPDOGHKLGDYYRGQHPHNVWUDNWX
Paper and board intended to come into contact with foodstuffs - Determination of
formaldehyde in an aqueous extract
Papier und Pappe vorgesehen für den Kontakt mit Lebensmitteln - Bestimmung von
Formaldehyd in einem wässrigen Extrakt
Papiers et cartons destinés a entrer en contact avec des denrées alimentaires -
Détermination du formaldéhyde dans un extrait aqueux
Ta slovenski standard je istoveten z: EN 1541:2001
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.
EUROPEAN STANDARD
EN 1541
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2001
ICS 67.250; 85.060 Supersedes EN 1541:1998
English version
Paper and board intended to come into contact with foodstuffs -
Determination of formaldehyde in an aqueous extract
Papiers et cartons destinés à entrer en contact avec les Papier und Pappe vorgesehen für den Kontakt mit
denrées alimentaires - Détermination du formaldéhyde Lebensmitteln - Bestimmung von Formaldehyd in einem
dans un extrait aqueux wässrigen Extrakt
This European Standard was approved by CEN on 19 February 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1541:2001 E
worldwide for CEN national Members.
Page 2
EN 1541 : 2001
Contents
Page
Foreword . 3
1 Scope . 4
2 Normative References . 4
3 Terms and definitions . 4
4 Principle . 4
5 Reagents . 4
6 Apparatus . 5
7 Preparation of sample . 5
8 Procedure . 6
9 Calculation and expression of results . 7
10 Confirmation . 7
11 Repeatability and reproducibility . 8
12 Test report . 8
Page 3
EN 1541 : 2001
Foreword
This European Standard 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 October 2001, and conflicting national standards shall be withdrawn at the latest
by October 2001.
This European Standard supersedes EN 1541:1998.
With regard to EN 1541 : 1998-06 and EN 1541 : 1998/AC the following changes have been made:
a) deletion of the Butan-1-ol step;
b) correction of the formula 2 by incorporation of EN 1541 : 1998/AC;
c) addition of more precise information on the reproducibility, see 11.2;
d) editorial updating.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
Page 4
EN 1541 : 2001
1 Scope
This European Standard specifies the determination of formaldehyde in aqueous extracts prepared from paper and
board intended to come into contact with foodstuffs. The limit of determination is 1 mg/kg. This means that for a
paper with a grammage of 100 g/m the lim² it of determination will be 0,001 mg/dm.²
For contact at room temperature the cold water extract is applied. For paper and board materials intended for boiling
and hot filtering purposes the hot water extract is applied.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 645
Paper and board intended to come into contact with foodstuffs – Preparation of a cold water extract
EN 647
Paper and board intended to come into contact with foodstuffs – Preparation of a hot water extract
3 Terms and definitions
For the purposes of this Standard the following terms and definitions apply:
3.1 cold water extract: the water solution obtained as a result of cold extraction [EN 645].
3.2 hot water extract: the water solution obtained as a result of hot extraction [EN 647].
4 Principle
Formaldehyde reacts with pentane-2,4-dione (acetylacetone) in the presence of ammonium acetate to form
3,5-diacetyl-1,4-dihydrolutidine. The absorbance of the extract is measured at a wavelength of 410 nm.
NOTE The extract should also be scanned by ultraviolet (UV) spectroscopy for confirmation where the level of
formaldehyde exceeds specified limits (see clause 10).
5 Reagents
All reagents shall be of analytical grade and the water shall be distilled or of equivalent purity.
5.1 Anhydrous ammonium acetate
5.2 Acetic acid 99% (d = 1,05)
5.3 Pentane-2,4-dione
5.4 Hydrochloric acid, 1 mol/l
5.5 Sodium hydroxide solution, 1 mol/l
5.6 Starch solution freshly prepared, 2 g/l
5.7 Formaldehyde solution, 370 g/l to 400 g/l
5.8 Standard iodine solution, 0,05 mol/l
5.9 Standard sodium thiosulphate solution, 0,1 mol/l
5.10 Pentane-2,4-dione reagent
In a 100,0 ml volumetric flask dissolve:
- 15,0 g anhydrous ammonium acetate (see 5.1);
- 0,2 ml pentane-2,4-dione (see 5.3);
- 0,3 ml acetic acid (see 5.2);
- 25 ml of water.
Make up to 100,0 ml with water. This reagent shall be freshly prepared.
5.11 Reagent (see 5.10) without pentane-2,4-dione
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