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 a partir de papier et de carton destinés a entrer en contact avec des denrées alimentaires. La limite de détermination est de 1 mg/kg, ce qui correspond a 0,001 mg/dm2 pour un papier de grammage 100 g/m2.
Pour des contacts a température ambiante, on applique la méthode d'extraction a froid. Pour des papiers et cartons destinés a l'ébullition et a la filtration a chaud, on applique la méthode d'extraction a chaud.

Papir, karton in lepenka, namenjeni neposrednemu stiku z živili - Določevanje formaldehida v vodnem ekstraktu

General Information

Status
Published
Publication Date
30-Apr-2002
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2002
Due Date
01-May-2002
Completion Date
01-May-2002

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SLOVENSKI STANDARD
SIST EN 1541:2002
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
SIST EN 1541:2002 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 1541:2002
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SIST EN 1541:2002
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.
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SIST EN 1541:2002
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
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SIST EN 1541:2002
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.
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SIST EN 1541:2002
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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