EN 71-3:2019+A2 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM December 2024 ICS 97.200.50 Supersedes EN 71-3:2019+A1:2021 English Version Safety of toys - Part 3: Migration of certain elements Sécurité des jouets - Partie 3 : Migration de certains Sicherheit von Spielzeug - Teil 3: Migration bestimmter éléments Elemente This European Standard was approved by CEN on 2 February 2021 and includes Amendment 2 approved by CEN on 31 October 2024. 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 CEN-CENELEC 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 Centre has the same status as the official versions. Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. ler EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @ 2024 CEN Ref. No. EN 71-3:2019+A2:2024 E All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Contents European foreword. Introduction 1 Scope. 2 Normative references. 3 Terms and definitions 8 4 Requirements... Toy material categories (se .) ... 4.1 9 4.2 Specific requirements.. 10 5 Principle 11 6 Reagents and apparatus 12 6.1 Reagents .... .12 6.2 Apparatus. 12 7 Sampling and sample preparation. .. 12 7.1 Selection of test portions. 7.2 Sample preparation... 13 7.2.1 .13 General 7.2.2 Sampling.... 8 Migration methodology .. ..15 8.1 Preparation of test portions before migration testing.. 8.1.1 General... .15 8.1.2 2 Category I: Dry, brittle, powder like or pliable materials and Category II: Liquid or sticky materials l... 8.1.3 Category IIl: Scraped-off materials.. .16 8.2 pH adjustment (see H.10).. .16 8.2.1 General....... 8.2.2 pH adjustment - no buffering effect by toy material.. 17 8.2.3 pH adjustment - buffering effect by toy material... 8.3 Migration procedure.... 8.3.1 .Migration... 18 8.3.2 Filtration (see H.8). 18 9 Stabilization and analysis of migration solutions .... 19 9.1 19 General. 9.2 General elements 9.3 Chromium. (VI)... 9.4 Organic tin .... 19 10 Calculation of results . 10.1 Calculation of migration .. .20 10.1.1 General... .20 10.2 Interpretation of results.. 20 11 Method performance 11.1 Repeatability and reproducibility .20 2 11.2 Estimation of bias .... 11.3 Limit of detection (LOD) and limit of quantification (LOQ) 12 Test report 23 Annex A (informative) Significant technical changes between this document and the previous version 25 Annex B (informative) Information on method validation.. 27 B.1 General .. 27 B.2 Samples of interlaboratory comparison B.3 Selection of material category/element combinations ... 28 Annex C (informative) Estimation of reproducibility.... Annex D (informative) Toy material visual particle size comparison materials.. Annex E (normative) Method of analysis for general elements.... E.1 Principle.. .33 E.2 Working solutions. E.2.1 Stock solution (M1).. E.2.2 Diluted stock solution (M2) . 34 E.2.3 Working solutions. .34 E.2.4 Internal standard stock solution E.3 Procedure 34 E.4 Analysis, 34 E.5 Calculation. 35 E.5.1 Calibration curve 35 E.5.2 Calculation of migration. Annex F (normative) Method of analysis for Chromium (vI) .. 36 F.1 Principle. 36 F.2 Reagents. .36 F.3 Apparatus F.4 Procedure F.5 Analysis .38 F.5.1 General 38 F.5.2 Chromatographic conditions... F.5.3 Limit of detection and quantification. .39 F.6 Calculation.. 39 F.6.1 Calibration curve .39 F.6.2 Calculation of migration.... 40 Annex G (normative) Method of a