EN 14243-2:2019

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Materialien aus Altreifen - Teil 2: Granulate und Pulver - Methode zur Bestimmung der Abmessungen und Verunreinigungen einschließlich freier Stahl, freie Textilien und andere VerunreinigungenMatériaux produits à partir de pneus usagés non réutilisables (PUNR) - Partie 2 : Granulats et poudrettes - Méthodes de détermination de leur(s) dimension(s) et impuretés, y compris la teneur en fils métalliques et en fibres textiles libresMaterials obtained from end of life tyres - Part 2: Granulates and powders - Methods for determining their dimension(s) and impurities, including free steel and free textile content83.160.01Avtomobilske pnevmatike na splošnoTyres in general13.030.50RecikliranjeRecyclingICS:Ta slovenski standard je istoveten z:EN 14243-2:2019SIST EN 14243-2:2019en,fr,de01-april-2019SIST EN 14243-2:2019SLOVENSKI
STANDARDSIST-TS CEN/TS 14243:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14243-2
February
t r s { English Version
Materials obtained from end of life tyres æ Part
tã Granulates and powders æ Methods for determining the particle size distribution and impuritiesá including free steel and free textile content Matériaux produits à partir de pneus usagés non æ Méthodes de détermination de la distribution granulométrique et des impuretésá y compris la teneur en fils métalliques et en fibres textiles libres
This European Standard was approved by CEN on
s { November
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s v t v uæ tã t r s { ESIST EN 14243-2:2019

Contents Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Categories of products obtained from end-of-life tyres based mainly on their dimensions and particle size distribution . 6 5 Determination of particle size distribution for granulates and powders . 7 Annex A (normative)
Determination of free steel content for granulates and powders by the method of magnetic separation . 17 A.1 General. 17 A.2 Principle of determination . 17 A.3 Sampling . 17 A.4 Equipment . 17 A.5 Procedure . 18 A.6 Calculation . 19 A.7 Metrological characteristics . 19 A.8 Test report . 19 Annex B (normative)
Determination of free textile content for granulates and powders by the method of the "small ball" agglomeration . 20 B.1 General. 20 B.2 Principle of the determination . 20 B.3 Sampling . 20 B.4 Equipment . 20 B.5 Procedure . 20 B.6 Calculations . 21 B.7 Metrological characteristics . 21 B.8 Test report . 21 Annex C (normative)
Determination of other impurities for granulates and powders by the method of a saline solution . 22 C.1 General. 22 C.2 Principle of the determination . 22 C.3 Sampling . 22 SIST EN 14243-2:2019

C.4 Equipment and Reagents . 22 C.5 Procedure . 23 C.6 Calculations . 24 C.7 Metrological characteristics . 25 C.8 Test report . 25 Annex D (informative)
Example of separatory funnel . 26 Annex E (informative)
Sieving . 27 Annex F (informative)
Recommended sieve list. 28 Bibliography . 29
European foreword This document (EN 14243-2:2019) has been prepared by Technical Committee CEN/TC 366 “Materials obtained from End-of-Life Tyres (ELT)”, the secretariat of which is held by UNI. 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 August 2019, and conflicting national standards shall be withdrawn at the latest by August 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document together with EN 14243-1 and EN 14243-3 supersede CEN/TS 14243:2010. EN 14243, Materials obtained from End-of-Life Tyres (ELTs), consists of the following parts: — Part 1: General definitions related to the methods for determining their dimension(s) and impurities — Part 2: Granulates and powders – Methods for determining the particle size distribution and impurities including free steel and free textile content — Part 3: Shreds cuts and chips – Methods for determining their dimension(s) including protruding filaments dimensions According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 14243-2:2019

Introduction This standard is used in conjunction with the other parts of EN 14243 series. Such series is intended to cover the testing programs needed to characterize each product category as shown on the figure below.
Figure 1 — Typical scheme for a testing programme concerning several characteristics with testing steps in the field and in the laboratory End-of-life tyres consist mainly of passenger and commercial vehicle tyres, truck, earthmover and agricultural tyres manufactured for distribution in the European market that are no longer suitable for their original purpose. Products from end-of-life tyres are used as a secondary raw material finding a wide range of applications. The principal categories of materials from end-of-life tyres are defined on the basis of their dimension(s) according to EN 14243-1. SIST EN 14243-2:2019

1 Scope This standard provides test methods for the determination of the particle size distribution of granulates and powders, produced from all categories of end-of-life tyres at all steps of the treatment processes as well as for the determination of impurities (including free steel and free textile content). The methods described in this standard include sample collection and the preparation of a representative sample based on a sampling plan for the purpose of determining particle size distribution and impurities. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 14243-1:2019, Materials obtained from end of life tyres — Part 1: General definitions related to the methods for determining their dimension(s) and impurities EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle size distribution — Sieving method EN 933-2, Tests for geometrical properties of aggregates — Part 2: Determination of particle size distribution — Test sieves, nominal size of apertures CEN/TS 17188, Materials obtained from end of life tyres — Sampling method for granulates and powders stored in big-bags ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings ISO 3310-1:2016, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth ISO 3310-2:2013, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14243-1:2019 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 4 Categories of products obtained from end-of-life tyres based mainly on their dimensions and particle size distribution For categories and testing program, refer to EN 14243-1:2019, Clause 4. SIST EN 14243-2:2019

5 Determination of particle size distribution for granulates and powders 5.1 General Particle size and related parameters are key measurements for product classification of size-reduced materials such as granulates and powders. Particle size analysis is the first measurement of consistency and forms the basis for material grading. Before being able to obtain an accurate particle size distribution, a representative sample of the material to be tested shall be taken. Depending on the agreed testing program between the producer and the customer, or on the producer's own will, the determination of particle size distribution specified in this clause for granulates and powders may be followed by the additional determination(s) of the free steel content and/or the free textile content and/or the other impurities as specified in Annexes A, B and C. 5.2
Sampling plan 5.2.1 Principles of sampling The main principle of sampling is to obtain a representative sample(s) from a lot of material from which a characteristic is to be determined.
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