EN 15519-2007 en Paper and board intended to come into contact with foodstuffs - Preparation of an organic solvent extract《用于与食品接触的纸浆和纸板 有机溶剂萃取的制备》.pdf

1、BRITISH STANDARDBS EN 15519:2007Paper and board intended to come into contact with foodstuffs Preparation of an organic solvent extractThe European Standard EN 15519:2007 has the status of a British StandardICS 67.250; 85.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g

2、48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15519:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2007 BSI 2007ISBN 978 0 580 58001 7Nation

3、al forewordThis British Standard is the UK implementation of EN 15519:2007. The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulps.A list of organizations represented on this committee can be obtained on request to its secretar

4、y.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORM

5、E 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 - Prparation dun extrait au solvantorganiqueP

6、apier 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 stipulate the conditions for giving this Europea

7、nStandard 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 exists in three official versions (English, Fr

8、ench, 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 bodies of Austria, Belgium, Bulgaria, Cyprus,

9、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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EURO

10、PEN 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) 2 Contents Page Foreword3 1 Scope 4 2 Normat

11、ive 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 EN 15519:2007 (E) 3 Foreword This document (EN 15519:2007) has been prepared by Technical Committee CEN/TC 172 “Pulp

12、, 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 conflicting national standards shall be withdrawn at the latest by May 20

13、08. 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 CEN/CENELEC Internal Regulations, the national standards organiza

14、tions 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman

15、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15519:2007 (E) 4 1 Scope This European Standard specifies a test method for the assessment of substitute tests performed with volatile test media for the determination of migration from paper and board intended to come int

16、o 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 iso-octane or 95 % v/v aqueous ethanol. 2 Normative references The following referenced

17、 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 amendments) applies. EN 1186-1:2002, Materials and articles in contact with foodstuffs Plastic

18、s 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 this document, the following term and definition applies. solvent extract filtered solven

19、t 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 aqueous ethanol. The conditions used for simulating contact with fatty foodstuffs in gene

20、ral 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 conditions are possible and they shall be stated in the test report. After extraction, the ext

21、ract, 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 60 C are not possible due to the boiling point of the solvents. 5 Materials and equipmen

22、t 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 Filtration equipment, fritted-glass filter porosity 4 (nom. size 90) with filter flask of

23、 500 ml (see ISO 6556). 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. cotton). 5.7 Thermostatically controlled oven, incubator or refrigerator capable of maintaining a temperature

24、 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 any exposed heating elements, to minimise safety hazards arising from any loss of the flammable solvents fro

25、m 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), purity 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. Pr

26、epare 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 test medium contains 95 % ethanol and 5 % water v/v. WARNING Both solvents are flammable. Take care at all t

27、imes 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 specimen with fingers. Protective gloves (5.6) shall be used. 7.2 A minimum of 10 g of the sample is requir

28、ed. 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 Cut the sample as taken into pieces of approximately 1 cm to 2 cm. Use protective gloves (5.6). 8.2 Weigh (

29、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 under the selected conditions and shake from time to time. If testing above ambient temperature for less than 24

30、 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 fresh solvent. If necessary, filter the extract using equipment as defined in 5.3. Transfer the extract and was

31、hings 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 solvent extract is required, appropriate scaling up can be used. EN 15519:2007 (E) 6 9 Expression of results

32、 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 the 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 ar

33、ea). 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 identification of the sample, such as chemical type, supplier, trade mark, grade, batch number, grammage; c) conditions of time a

34、nd 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, and mean of these, expressed in milligrams residue per square decimetre of sample; f) relevant comments on the test results. EN 155

35、19:2007 (E) 7 Bibliography 1 EN ISO 24450, Laboratory glassware Wide-necked boiling flasks (ISO 24450:2005) 2 EN 20287, Paper and board Determination 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

36、 glassware One-mark volumetric flasks (ISO 1042:1998) 5 ISO 6556, Laboratory glassware Filter flasks 6 ISO 1773, Laboratory glassware Narrow-necked boiling flasks BS EN 15519:2007BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible fo

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