SIST EN 17189:2025
(Main)Materials obtained from end of life tyres (ELT) - Determination of the true density of granulates and powders - Method based on water pycnometry
Materials obtained from end of life tyres (ELT) - Determination of the true density of granulates and powders - Method based on water pycnometry
This document sets out methods and test protocols used to determine the true density of granulates and powders produced from ELTs, based on water pycnometry.
Materialien aus Altreifen (ELTs) - Bestimmung der tatsächlichen Dichte von Granulaten - Methode auf der Grundlage von Wasser-Pyknometrie
Dieses Dokument legt Verfahren und Versuchsprotokolle fest, die verwendet werden, um die tatsächliche Dichte für Granulate und Mehle aus ELTs auf der Grundlage von Wasser-Pyknometrie zu bestimmen.
Matériaux obtenus à partir de pneus usagés non réutilisables (PUNR) - Détermination de la densité vraie des granulats et des poudrettes - Méthode basée sur la pycnométrie à eau
Le présent document spécifie des méthodes et des protocoles d’essai employés pour déterminer la densité vraie de granulats et poudrettes produits à partir de PUNR, sur la base de la pycnométrie à eau.
Snovi iz izrabljenih avtomobilskih gum (ELT) - Določanje prave gostote granulatov in praškov - Metoda, ki temelji na vodni piknometriji
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Snovi iz izrabljenih avtomobilskih gum (ELT) - Določanje prave gostote granulatov
in praškov - Metoda, ki temelji na vodni piknometriji
Materials obtained from end of life tyres (ELT) - Determination of the true density of
granulates and powders - Method based on water pycnometry
Materialien aus Altreifen (ELTs) - Bestimmung der tatsächlichen Dichte von Granulaten -
Methode auf der Grundlage von Wasser-Pyknometrie
Matériaux obtenus à partir de pneus usagés non réutilisables (PUNR) - Détermination de
la densité vraie des granulats et des poudrettes - Méthode basée sur la pycnométrie à
eau
Ta slovenski standard je istoveten z: EN 17189:2024
ICS:
13.030.50 Recikliranje Recycling
83.160.01 Avtomobilske pnevmatike na Tyres in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17189
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 13.030.50; 83.160.01 Supersedes CEN/TS 17189:2018
English Version
Materials obtained from End-of-Life Tyres (ELT) -
Determination of the true density of granulates and
powders - Method based on water pycnometry
Matériaux obtenus à partir de pneus usagés non Materialien aus Altreifen (ELTs) - Bestimmung der
réutilisables (PUNR) - Détermination de la densité tatsächlichen Dichte von Granulaten - Methode auf der
vraie des granulats et des poudrettes - Méthode basée Grundlage von Wasser-Pyknometrie
sur la pycnométrie à eau
This European Standard was approved by CEN on 25 November 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17189:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Apparatus . 6
6 Preparation . 6
6.1 Sample preparation . 6
6.2 Surfactant solution . 7
7 Procedure for rubber granulates . 7
7.1 Method . 7
7.2 Preparation of pycnometer and sample . 7
7.3 Removal of trapped air . 8
7.4 Filling of pycnometer. 8
8 Expression of results . 8
9 Test report . 9
Annex A (normative) Specific Method for ELT rubber powder . 10
Bibliography . 11
European foreword
This document (EN 17189:2024) 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 June 2025 and conflicting national standards shall be
withdrawn at the latest by June 2025.
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 supersedes CEN/TS 17189:2018.
This document includes the following significant technical changes with respect to
CEN/TS 17189:2018:
— addition of a sampling and true density determination method for powders in the Title and Scope;
— revision of the used terminology to integrate powders;
— review of the general structure of the document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, 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, Türkiye and the
United Kingdom.
Introduction
True density is a key measurement for product characterization of size-reduced materials such as
granulates and powders. This document specifies a specific method for granulates and powders
considering that, to obtain an accurate value of true density, a representative sample of the material to
be tested is taken according to the principle that every particle of the sample that represents the lot will
have an equal probability of being included in the sample.
Sampling criteria to assess characteristics of granulates and powders at various stages of a production
process by size reduction of End-of-Life Tyres are given in EN 14243-2.
Measurement of true density could be useful to identify the nature of particles of different origin, for
example, when a customer needs to check if they received granular material derived from End-of-Life
Tyres (ELTs) or from products based on EPDM polymers. True density is different between these two
products and could be a reliable element to discriminate.
Typical values are:
— ELT granulates: 1.12 - 1.22;
— EPDM granulates: 1.4 - 1.6.
1 Scope
This document specifies methods and test protocols used to determine the true density of granulates
and powders produced from ELTs, based on water pycnometry.
This document is applicable for powders and granulates below 12 mm.
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, Materials obtained from end of life tyres — Part 1: General definitions related to the methods
for determining their dimension(s) and impurities
EN 14243-2, Materials obtained from end of life tyres — Part 2: Granulates and powders — Methods for
determining the particle size distribution and impurities, including free steel and free textile content
EN 17188, Materials obtained from End-of-Life Tyres (ELT) — Sampling method for granulates and
powders stored in big-bags
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14243-1 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
true density
ratio between the mass of a certain volume of the substance at a given temperature T and the mass of
the same volume of water at the same temperature
Note 1 to entry: The true density is the relationship between the mass and the actually occ
...
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