1、BRITISH STANDARDBS EN 1186-3:2002Materials and articles in contact with foodstuffs Plastics Part 3: Test methods for overall migration into aqueous food simulants by total immersionThe European Standard EN 1186-3:2002 has the status of a British StandardICS 67.250NO COPYING WITHOUT BSI PERMISSION EX
2、CEPT AS PERMITTED BY COPYRIGHT LAWBS EN 1186-3:2002This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 21 May 2002 BSI 21 May 20
3、02ISBN 0 580 39748 3National forewordThis British Standard is the official English language version of EN 1186-3:2002. It supersedes DD ENV 1186-3:1994 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee CW/47, Materials in contact with food, to Subcommitt
4、ee CW/47/1, Migration from plastics, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be
5、found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue.A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standa
6、rds are responsible for their correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep t
7、he UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover.The BSI copyright date displayed in this document indicates
8、when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1186-3April 2002ICS 67.250 Supersedes ENV 1186-3:1994English versionMaterials and articles in contact with foodstuffs - Plastics - Part3: Test methods for over
9、all migration into aqueous foodsimulants by total immersionMatriaux et objets en contact avec les denresalimentaires - Matire plastique - Partie 3: Mthodesdessai pour la migration globale dans lhuile dolive parimmersion totaleWerkstoffe und Gegenstnde in Kontakt mit Lebensmitteln- Kunststoffe - Teil
10、 3: Prfverfahren fr dieGesamtmigration in wssrige Prflebensmittel durchvlliges EintauchenThis European Standard was approved by CEN on 4 January 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status o
11、f a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 i
12、n any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, German
13、y, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rig
14、hts of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1186-3:2002 EEN 1186-3:2002 (E)2ContentspageForeword31 Scope 52 Normative references 53 Method A - overall migration into aqueous food simulants by total immersion in an oven orincubator or refrig
15、erator54 Method B - overall migration into aqueous food simulants by total immersion at reflux.11Annex A (informative) Precision data.14Annex ZA (informative) Relationship of this European Standard with Council Directive 89/109/EECand Commission Directive 90/128/EEC and associated Directives15Biblio
16、graphy 17EN 1186-3:2002 (E)3ForewordThis document EN 1186-3:2002 has been prepared by Technical Committee CEN/TC 194 “Utensils in contact withfood“, the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical
17、text orby endorsement, at the latest by October 2002, and conflicting national standards shall be withdrawn at the latestby October 2002.This document supersedes ENV 1186-3:1994.This European Standard is one of a series of methods of test for plastics materials and articles in contact withfoodstuffs
18、.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EC Directive(s).For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this document.At the t
19、ime of preparation and publication of this standard the European Union legislation relating to plasticsmaterials and articles intended to come into contact with foodstuffs is incomplete. Further Directives andamendments to existing Directives are expected which could change the legislative requireme
20、nts which thisstandard supports. It is therefore strongly recommended that users of this standard refer to the latest relevantpublished Directive(s) before commencement of any of the test or tests described in this standard.EN 1186-3 should be read in conjunction with EN 1186-1.Further Parts of this
21、 standard have been prepared concerned with the determination of overall migration fromplastics materials into food simulants.Their titles are as follows:EN 1186 - Materials and articles in contact with foodstuffs - Plastics Part 1 Guide to the selection of conditions and test methods for overall mi
22、grationPart 2 Test methods for overall migration into olive oil simulants by total immersionPart 4 Test methods for overall migration into olive oil by cellPart 5 Test methods for overall migration into aqueous food simulants by cellPart 6 Test methods for overall migration into olive oil using a po
23、uchPart 7 Test methods for overall migration into aqueous food simulants using a pouchPart 8 Test methods for overall migration into olive oil by article fillingPart 9 Test methods for overall migration into aqueous food simulants by article fillingPart 10 Test methods for overall migration into oli
24、ve oil (modified method for use in cases whereincomplete extraction of olive oil occurs)Part 11 Test methods for overall migration into mixtures of 14C-labelled synthetic triglycerideEN 1186-3:2002 (E)4Part 12 Test methods for overall migration at low temperaturesPart 13 Test methods for overall mig
25、ration at high temperaturesPart 14 Test methods for substitute tests for overall migration from plastics intended to come intocontact with fatty foodstuffs using test media iso-octane and 95 % ethanolPart 15 Alternative test methods to migration into fatty food simulants by rapid extraction into iso
26、-octane and/or 95 % ethanolAnnex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Irel
27、and, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.EN 1186-3:2002 (E)51 ScopeThis Part of this European Standard specifies test methods for the determination of the overall migration intoaqueous based food simulants from plastics which are
28、intended to come into contact with foodstuffs, by totalimmersion of test specimens in a selected food simulant at test temperatures up to reflux for selected test times.This method is most suitable for plastics in the form of films and sheets, but can be applied to a wide range ofarticles or contain
29、ers from which test pieces of suitable size can be cut.2 Normative referencesThis European Standard incorporates by dated and undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. F
30、ordated references, subsequent amendments to and revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 1186-1:2002, Materia
31、ls and articles in contact with foodstuffs Plastics Part 1: Guide to the selection ofconditions and test methods for overall migration.EN 10088-1:1995, Stainless steels - Part 1: List of stainless steels.EN ISO 8442-2:1997, Materials and articles in contact with foodstuffs Cutlery and table hollowar
32、e Part 2:Requirements for stainless steel and silver- plated cutlery (ISO 8442-2:1997).ISO 4788, Laboratory glassware - Graduated measuring cylinders.3 Method A - overall migration into aqueous food simulants by total immersion in anoven or incubator or refrigerator3.1 PrincipleThe overall migration
33、 of non-volatile substances from a sample of the plastics is determined as the mass of non-volatile residue after evaporation of the food simulant following immersion.The selection of the conditions of test and the food simulant(s) shall be determined by the conditions of use; seeclauses 4, 5 and 6
34、of EN 1186-1:2002.Test specimens of approximately 1 dm, see clause 8 of EN 1186-1:2002, are immersed in the food simulant for theexposure time at temperatures up to and including the temperature of reflux. At the end of the test period, eachtest specimen is removed from the food simulant. The food s
35、imulant from each test specimen is evaporated todryness, the mass of the non-volatile residue is determined gravimetrically and expressed as milligrams per squaredecimetre of surface area of test specimen.Overall migration is reported as the mean of three determinations on separate test specimens.3.
36、2 ReagentsNOTE For details of preparation and quality of these reagents, see clause 4 of EN 1186-1:2002.3.2.1 Distilled water or water of equivalent quality (simulant A)3.2.2 Acetic acid 3 % (w/v) in aqueous solution (simulant B)3.2.3 Ethanol 10 % (v/v) in aqueous solution (simulant C)EN 1186-3:2002
37、 (E)63.2.4 Alcoholic simulants for liquids or beverages of an alcoholic strength exceeding 10 % (v/v).NOTE In the case of materials and articles intended to come into contact with liquids or beverages of an alcoholic strengthexceeding 10 % (v/v) the test is carried out with aqueous solutions of etha
38、nol of a similar strength.3.3 Apparatus3.3.1 Cutting slab, clean smooth glass, metal or plastics slab of suitable area to prepare test specimens,250 mm 250 mm is suitable.3.3.2 Tweezers, stainless steel, blunt nosed.3.3.3 Cutting implement, scalpel, scissors or sharp knife or other suitable device.3
39、.3.4 Metal template, (100 mm 0,2 mm) (100 mm 0,2 mm) (square).3.3.5 Rule or template, 25 mm 1 mm wide.3.3.6 Rule, graduated in mm, and with an accuracy of 0,1 mm.3.3.7 Analytical balance capable determining a change in mass of 0,1 mg.3.3.8 Specimen supports, constructed of stainless steel with cross
40、 arms attached by welding or silver soldering,or of glass. Stainless steel X4 CrNi 18 10 according to EN 10088-1: 1995 or of composition, chromium 17 %,nickel 9 %, carbon 0,04 %, is suitable. Before initial use thoroughly clean the stainless steel supports. The use of adegreasing solvent and then di
41、lute nitric acid has been found to be suitable. For the aqueous acetic acid foodsimulant, use supports constructed out of glass, as there is a tendency for the acetic acid to corrode stainless steelsupports, particularly if the joints are silver soldered.NOTE 1 However stainless steel supports can b
42、e used for acetic acid if it can be demonstrated that when immersed on theirown in simulant, for the test period, at the test temperature, the residue after evaporating the simulant to dryness and drying inan oven or incubator or refrigerator to constant mass at 105 C to 110 C is less than 5mg/l, se
43、e 4.1 ofEN 1186-1:2002.NOTE 2 The method has been written for the supports shown in Figure C.1 of EN 1186-1:2002 which have been found to besuitable for holding thin film and sheet test pieces. However other supports can be used providing they are capable of holdingand keeping the test pieces apart
44、and at the same time ensuring complete contact with the simulant. For rigid samples,supports with a single cross arm may be used.3.3.9 Gauze, pieces of fine stainless steel gauze, with a mesh size of 1 mm have been found to be suitable,approximately 25 mm 100 mm or, glass rods, 2 mm to 3 mm in diame
45、ter and approximately 100 mm long to beused with the acetic acid food simulant, for insertion between the test pieces. Before initial use thoroughly clean thegauze, first with a degreasing solvent and then with dilute nitric acid.3.3.10 Glass tubes, ground neck, for retaining the food simulant and t
46、est specimens. Tubes with an internaldiameter of approximately 35 mm and length of between 100 mm and 200 mm, excluding the ground neck (see 7.2of EN 1186-1:2002) have been found to be satisfactory.3.3.11 Glass beads, 2 mm to 3 mm diameter or glass rods, 2 mm to 3 mm in diameter and approximately 10
47、0 mmlong (see 7.2 of EN 1186-1:2002).3.3.12 Thermostatically controlled oven or incubator or refrigerator capable of maintaining the set temperaturewithin the tolerances specified in Table B.2 of EN 1186-1:2002.3.3.13 Dishes, stainless steel, nickel, platinum, platinum alloy, gold 50 mm to 90 mm dia
48、meter and maximummass 100 g, for evaporation of food simulants and weighing of residues. Glass, glass ceramic or ceramic dishesmay be used provided that the surface characteristics are such that the masses of the dishes after evaporation ofany specified food simulants followed by conditioning in the
49、 desiccator used achieves a constancy of 0,5 mg.Stainless steel and nickel dishes are suitable only for distilled water and ethanol solutions. Glass, glass ceramic,glazed ceramic, platinum or, platinum alloy or gold dishes are suitable for all three simulants.EN 1186-3:2002 (E)73.3.14 Steam bath, hot plate, distillation apparatus or rotary evaporator for evaporation of food simulant at the endof test period.3.3.15 Desiccator with anhydrous calcium chloride or self indicating silica gel.3.3.16 Measuring cylinder, 100 ml, complying with t
