SIST-TP CEN/TR 17511:2020

SLOVENSKI STANDARD
kSIST-TP FprCEN/TR 17511:2020
01-junij-2020
Materiali, pridobljeni iz izrabljenih avtomobilskih gum - Vonj granulatov ELT - Vir in
možnosti sanacije
Materials obtained from End-of-Life Tyres - Odour of ELT granulates - Origin and
remediation possibilities
Materialien aus Altreifen - Geruch von ELT-Granulaten - Ursprungs- und
Sanierungsmöglichkeiten
Matériaux produits à partir de pneus usagés non réutilisables (PUNR) - Odeur des
granulats - Origine et possibilités de remédiation
Ta slovenski standard je istoveten z: FprCEN/TR 17511
ICS:
83.160.01 Avtomobilske pnevmatike na Tyres in general
splošno
kSIST-TP FprCEN/TR 17511:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST-TP FprCEN/TR 17511:2020

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kSIST-TP FprCEN/TR 17511:2020


FINAL DRAFT
TECHNICAL REPORT
FprCEN/TR 17511
RAPPORT TECHNIQUE

TECHNISCHER BERICHT

February 2020
ICS
English Version

Materials obtained from End-of-Life Tyres - Odour of ELT
granulates - Origin and remediation possibilities
 Materialien aus Altreifen - Geruch von ELT-Granulaten
- Ursprungs- und Sanierungsmöglichkeiten


This draft Technical Report is submitted to CEN members for Vote. It has been drawn up by the Technical Committee CEN/TC
366.

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, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a Technical Report. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a Technical Report.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TR 17511:2020 E
worldwide for CEN national Members.

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kSIST-TP FprCEN/TR 17511:2020
FprCEN/TR 17511:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and symbols . 5
3.1 Terms and definitions . 5
3.2 Symbols and abbreviated terms . 5
4 Determination of the intensity . 5
4.1 Methods . 5
5 Origin of the odour . 6
5.1 General . 6
5.2 At room temperature . 6
5.2.1 Description of the study . 6
5.2.2 Measured intensities for granulates . 6
5.2.3 Odour and molecular origin . 7
5.3 At higher temperature . 8
5.3.1 Description of the study . 8
5.3.2 Measured intensities for granulates . 8
5.3.3 Odour and molecular origin . 8
6 Remediation possibilities . 9
7 Conclusion and recommendations . 9
Bibliography . 10


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European foreword
This document (FprCEN/TR 17511:2020) 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 document is currently submitted to the Vote on TR.

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Introduction
The odour of ELTs granulates can be an obstacle to their use. This is particularly critical at high
temperatures, e.g. in the case of a plastic injection.
In order to solve this problem, the origin of the odour is identified to the extent that this is possible. Then
it is quantified under normal conditions of use or at higher temperatures.
The identification of the exact origin of the odour would allow the possibility of reducing or eliminating it.

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1 Scope
The purpose of this document is to provide a review of the studies that were performed on odour of ELT
granulates.
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
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14243-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.2 Symbols and abbreviated terms
For the purposes of this part, the following symbols apply.
VOC Volatile Organic Compound
NR Natural Rubber
4 Determination of the intensity
4.1 Methods
In a first study [3], granulates from six different suppliers were used. The techniques that were assessed
for the determination of the intensity of the odour were the following:
— Renault D49-3001: this is one of the standardized tests for odour and smell that are commonly used
by the automotive industry. In this method, the samples in solid form are placed in a sealed container
between 70 °C and 100 °C during 2 h. A jury of at least five trained panellists then gives an intensity
on a scale from 1 to 5. The nature of the smell is then placed in a family. The scale is defined as:
— 0: no perceptible odour;
— 1: weak odour, demanding extra attention and hard to describe;
— 2: the subject perceives by simple smelling, without any other information;
— 3: odour perceived even when the attention of the subject is elsewhere;
— 4: powerful odour attracting the attention of the subject and hindering his other activities;
— 5: unavoidable odour, focusing the attention of the subject.

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— Dynamic olfactometry: this is also a human-based method. The odour is diluted with a neutral gas
until it is not detected by the panellist anymore. This gives a threshold concentration.
— Hedonic test: this is also a human-based method, to assess if the odour is pleasant or not.
— GC-MS o
...