1、January 2008DEUTSCHE NORM English price group 6No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 55.040; 67.250; 85.080.
2、99!$Kp“1409277www.din.deDDIN EN 15519Paper and board intended to come into contact with foodstuffs Preparation of an organic solvent extractEnglish version of DIN EN 15519:2008-01Papier und Pappe vorgesehen fr den Kontakt mit Lebensmitteln Herstellung eines organischen LsemittelextraktesEnglische Fa
3、ssung DIN EN 15519:2008-01www.beuth.deDocument comprises 9 pagesDIN EN 15519:2008-01 2 National foreword This standard has been prepared by Technical Committee CEN/TC 172 “Pulp, paper and board” (Secretariat: DIN, Germany). The leading Technical Committee within CEN/TC 172 is WG 3 “Analytical method
4、s for the assessment of paper and board in contact with foodstuffs” (chairmanship: Austria). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Technical Committee NA 062-04-21 GA (formerly NMP 421/NPa) Chemisch-tec
5、hnologische Prfverfahren fr Papier, Pappe, Faserstoff und Chemiezellstoff. The DIN Standard corresponding to the International Standard referred to in the Bibliography of the EN is as follows: ISO 1773 DIN ISO 1773 National Annex NA (informative) Bibliography DIN ISO 1773, Laboratory glassware Narro
6、w-necked boiling flasks EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15519November 2007ICS 55.040; 67.250English VersionPaper and board intended to come into contact with foodstuffs -Preparation of an organic solvent extractPapier et carton destins entrer en contact avec lesdenres alimentaires
7、- Prparation dun extrait au solvantorganiquePapier und Pappe vorgesehen fr den Kontakt mitLebensmitteln - Herstellung eines organischenLsemittelextraktesThis European Standard was approved by CEN on 23 September 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti
8、pulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard e
9、xists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards b
10、odies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUR
11、OPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15519:2007: EEN 15519:2007 (E)
12、 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle4 5 Materials and equipment.4 6 Reagents.5 7 Sampling.5 8 Procedure .5 9 Expression of results 6 10 Test report 6 Bibliography 7 DIN EN 15519:2008-01 EN 15519:2007 (E) 3 Foreword This document (EN 155
13、19:2007) 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 2008, and conflic
14、ting national standards shall be withdrawn at the latest by May 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the
15、 CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
16、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15519:2008-01 EN 15519:2007 (E) 4 1 Scope This European Standard specifies a test method for the assessment of substitute tests performed with volatile
17、test media for the determination of migration from paper and board intended to come into contact with fatty foodstuffs at all temperatures and for any period of time. NOTE At the time that this European Standard was prepared, the EU directives for material coming into contact with food required use
18、iso-octane or 95 % v/v aqueous ethanol. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendme
19、nts) applies. EN 1186-1:2002, Materials and articles in contact with foodstuffs Plastics Part 1: Guide to the selection of conditions and test methods for overall migration EN ISO 186, Paper and board Sampling to determine average quality (ISO 186:2002) 3 Terms and definitions For the purposes of th
20、is document, the following term and definition applies. solvent extract filtered solvent solution obtained as a result of the extraction NOTE In certain instances this extract can contain small amounts of suspended particles. 4 Principle The sample is cut and extracted with iso-octane or 95 % v/v aq
21、ueous ethanol. The conditions used for simulating contact with fatty foodstuffs in general are 2 h at 20 C for short time simulating contact or 24 h at 20 C for long time simulating contact. For baking or cooking applications the test conditions to use are 2 h at 60 C. In special cases other conditi
22、ons are possible and they shall be stated in the test report. After extraction, the extract, if necessary, has to be filtered. The extract or the filtrate (solvent extract) is used for investigation of the extractives. NOTE Test times longer than 24 h are not necessary. Test temperatures more than 6
23、0 C are not possible due to the boiling point of the solvents. 5 Materials and equipment Ordinary laboratory apparatus and: 5.1 Analytical balance, capable of determining a change in mass of 0,01 mg. 5.2 500 ml conical glass flasks, wide neck with ground glass stopper with tap (see ISO 1773). 5.3 Fi
24、ltration equipment, fritted-glass filter porosity 4 (nom. size 90) with filter flask of 500 ml (see ISO 6556). DIN EN 15519:2008-01 EN 15519:2007 (E) 5 5.4 Graduated measuring cylinder made of glass, 250 ml. 5.5 One-mark volumetric glass flask, 250 ml (see EN ISO 1042). 5.6 Protective gloves (e.g. c
25、otton). 5.7 Thermostatically controlled oven, incubator or refrigerator capable of maintaining a temperature within the range of 20 C to 60 C and within the tolerances as specified in EN 1186-1:2002, Table B.2. WARNING The interior/sample space of the oven, incubator or refrigerator should not have
26、any exposed heating elements, to minimise safety hazards arising from any loss of the flammable solvents from the tubes during the test period. 6 Reagents 6.1 General All reagents shall be of a recognized analytical quality, unless otherwise specified. 6.2 Iso-octane, (2,2,4-trimethyl pentane), puri
27、ty 98,5 % (v/v) or greater, CAS No. 540-84-1. 6.3 Ethanol, purity 96 % (v/v) or greater, CAS No. 64-17-5. Prepare from this a 95 % aqueous ethanol solution. The solvent ratio used should be adjusted to allow for the initial water content (if any) of the 96 % purity ethanol reagent so that the final
28、test medium contains 95 % ethanol and 5 % water v/v. WARNING Both solvents are flammable. Take care at all times when handling these solvents to prevent contact with sources of ignition. 7 Sampling 7.1 Sampling is carried out in accordance with EN ISO 186. Do not touch the test area of the sample or
29、 specimen with fingers. Protective gloves (5.6) shall be used. 7.2 A minimum of 10 g of the sample is required. 7.3 If required, take a separate sample for the determination of the grammage in accordance with EN ISO 536 and/or for the determination of moisture content (see EN 20287). 8 Procedure 8.1
30、 Cut the sample as taken into pieces of approximately 1 cm to 2 cm. Use protective gloves (5.6). 8.2 Weigh (10 0,1) g of the test pieces and put them into the conical flasks (5.2). Add 200 ml of the appropriate solvent and stopper the volumetric glass flask (5.5). Leave the preparation to stand unde
31、r the selected conditions and shake from time to time. If testing above ambient temperature for less than 24 h then preheat the solvent in the conical flask to 60 C and then add the sample to the warm solvent. Decant the solution and wash the test pieces in the flask twice with small portions of fre
32、sh solvent. If necessary, filter the extract using equipment as defined in 5.3. Transfer the extract and washings or the filtrate to a marked volumetric flask (5.5) and fill up to the mark with the solvent. Use the content of the flask for further investigations. NOTE If more than 250 ml of organic
33、solvent extract is required, appropriate scaling up can be used. DIN EN 15519:2008-01 EN 15519:2007 (E) 6 9 Expression of results Express the amount of measured component extracted into the solvent as milligram per square decimetre of the specimen taking into account the grammage and counting only t
34、he simple area of the specimen (e. g. 10 cm 10 cm square specimen is taken in calculations as 1 dm and not as the 2 dm surface area). 10 Test report The test report shall include the following information: a) reference to this European Standard (EN 15519:2007); b) information necessary for complete
35、identification of the sample, such as chemical type, supplier, trade mark, grade, batch number, grammage; c) conditions of time and temperature of exposure to the solvent and the solvent used; d) departure from the specified procedure that may have affected the result; e) individual test results, an
36、d mean of these, expressed in milligrams residue per square decimetre of sample; f) relevant comments on the test results. DIN EN 15519:2008-01 EN 15519:2007 (E) 7 Bibliography 1 EN ISO 24450, Laboratory glassware Wide-necked boiling flasks (ISO 24450:2005) 2 EN 20287, Paper and board Determination
37、of moisture content Oven-drying method (ISO 287:1985) 3 EN ISO 536, Paper and board Determination of grammage (ISO 536:1995) 4 EN ISO 1042, Laboratory glassware One-mark volumetric flasks (ISO 1042:1998) 5 ISO 6556, Laboratory glassware Filter flasks 6 ISO 1773, Laboratory glassware Narrow-necked boiling flasks DIN EN 15519:2008-01
