CEN/TR 17511:2020
(Main)Materials obtained from End-of-Life Tyres - Odour of ELT granulates - Origin and remediation possibilities
Materials obtained from End-of-Life Tyres - Odour of ELT granulates - Origin and remediation possibilities
The purpose of this document is to provide a review of the studies that were performed on odour of ELT granulates.
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
Le présent document a pour objet de fournir une revue des études qui ont été menées sur l'odeur des granulats.
Materiali, pridobljeni iz izrabljenih avtomobilskih gum - Vonj granulatov ELT - Vir in možnosti sanacije
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-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: CEN/TR 17511:2020
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.
CEN/TR 17511
TECHNICAL REPORT
RAPPORT TECHNIQUE
July 2020
TECHNISCHER BERICHT
ICS 13.160
English Version
Materials obtained from End-of-Life Tyres - Odour of ELT
granulates - Origin and remediation possibilities
Matériaux produits à partir de pneus usagés non Materialien aus Altreifen - Geruch von ELT-Granulaten
réutilisables (PUNR) - Odeur des granulats - Origine et - Ursprungs- und Sanierungsmöglichkeiten
possibilités de remédiation
This Technical Report was approved by CEN on 22 June 2020. 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.
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. CEN/TR 17511:2020 E
worldwide for CEN national Members.
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
European foreword
This document (CEN/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.
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.
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.
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.
— 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 olfaction test: this is a mixed human/machine method.
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.