Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 1: Designation system and basis for specification (ISO 20028-1:2017)

This document establishes a system of designation for thermoplastic polyester (TP) material,
which can be used as the basis for specifications. It covers polyester homopolymers for moulding
and extrusion based on poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT),
poly(cyclohexylenedimethylene terephthalate) (PCT), poly(ethylene naphthalate) (PEN), poly(butylene
naphthalates) (PBN) and other TP-types and copolyesters of various compositions for moulding and
extrusion.
The types of thermoplastic polyester are differentiated from each other by a classification system
based on appropriate levels of the designatory properties:
a) viscosity number;
b) tensile modulus of elasticity;
and on information about the intended application and/or method of processing, important properties,
additives, colorants, fillers and reinforcing materials.
This designation system is applicable to thermoplastic polyester homopolymers and copolymers. It
applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or
modified by colorants, fillers and other additives. This document does not apply to the saturated
polyester/ester and polyether/ester thermoplastic elastomers covered by ISO 20029.
It is not intended to imply that materials having the same designation give necessarily the same
performance. This document does not provide engineering data, performance data or data on processing
conditions which can be required to specify a material. If such additional properties are required, they
are intended to be determined in accordance with the test methods specified in ISO 20028-2, if suitable.
In order to designate a thermoplastic polyester material to meet particular specifications, the
requirements are to be given in data block 5 (see 3.1).

Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 1: Bezeichnungssystem und Basis für Spezifikationen (ISO 20028-1:2017)

Dieses Dokument legt ein Bezeichnungssystem für thermoplastische Polyester (TP) Werkstoffe fest, das als Grundlage für Spezifikationen angewendet werden kann. Es umfasst Polyester Homopolymere (Reinpoly-merisate) für Werkstoffe auf Basis von Poly(ethylenterephthalat) (PET), Poly(butylenterephthalat) (PBT), Poly(cyclohexylendimethylenterephthalat) (PCT), Poly(ethylennaphthalat) (PEN), Poly(butylennaphthalat) (PBN) und andere TP Arten sowie Copolyester verschiedener Zusammensetzungen zum Formen und Extrudieren.
Die Arten thermoplastischer Polyester werden mithilfe eines Einteilungssystems voneinander unter-schieden, das auf geeigneten Wertebereichen der kennzeichnenden Eigenschaften
a)   Viskositätszahl;
b)   Zugelastizitätsmodul;
und auf Angaben über die vorgesehene Anwendung und/oder das vorgesehene Verarbeitungsverfahren, wichtige Eigenschaften, Additive, Farbstoffe, Füll  und Verstärkungsstoffe beruht.
Dieses Bezeichnungssystem gilt für thermoplastische Polyester-Homopolymere und -Copolymere. Es gilt für gebrauchsfertige Werkstoffe in Form von Pulver, Granulat oder Pellets, nicht modifiziert oder modifiziert mit Farbstoffen, Füllstoffen und anderen Additiven. Dieses Dokument gilt nicht für gesättigte Polyester/Ester  und Polyether/Ester Thermoplastelastomere, die in ISO 20029 behandelt werden.
Es sollte nicht unterstellt werden, dass Werkstoffe mit gleicher Bezeichnung das gleiche Leistungsverhalten aufweisen. Dieses Dokument enthält keine technischen Daten, Leistungsangaben oder Daten zu Verarbeitungsbedingungen, die erforderlich sein können, um einen Werkstoff zu spezifizieren. Wenn derartige zusätzliche Eigenschaften erforderlich sind, werden diese, soweit möglich, nach denen in ISO 20028 2 festgelegten Prüfverfahren bestimmt.
Um einen thermoplastischen Polyester-Werkstoff so zu bezeichnen, dass er besonderen Spezifikationen entspricht, sind zusätzliche Anforderungen im Daten Block 5 anzuführen (siehe 3.1).

Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion — Partie 1 : Système de désignation et base de spécification (ISO 20028-1:2017)

ISO 20028-1:2017 établit un système de désignation des matériaux polyesters thermoplastiques (TP) qui peut être utilisé comme base pour les spécifications. Elle s'applique aux homopolymères des polyesters pour moulage et extrusion à base de poly(téréphtalate d'éthylène) (PET), de poly(téréphtalate de butylène) (PBT), de poly(téréphtalate de cyclohexylène diméthylène) (PCT), de poly(naphtalate d'éthylène) (PEN), de poly(naphtalate de butylène) (PBN) et autres types de TP, ainsi qu'aux copolyesters de compositions variables pour moulage et extrusion.
Les types de polyesters thermoplastiques sont différenciés les uns des autres par un système de classification fondé sur des niveaux appropriés des propriétés de désignation:
a) indice de viscosité;
b) module d'élasticité en traction;
et des informations sur l'application prévue et/ou la méthode de mise en ?uvre, les propriétés importantes, les additifs, les colorants, les charges et les matériaux de renfort.
Ce système de désignation s'applique aux homopolymères et copolymères de polyesters thermoplastiques. Il s'applique aux matériaux prêts à l'emploi sous forme de poudres, grains ou granulés, non modifiés ou modifiés par des colorants, charges et autres additifs. Le présent document ne s'applique pas aux élastomères thermoplastiques à base de copolymères saturés polyester/ester et polyéther/ester couverts par l'ISO 20029.
Le fait que des matériaux aient la même désignation n'implique pas qu'ils présentent nécessairement les mêmes performances. Le présent document ne comporte pas de données sur la conception, les performances ou les conditions de mise en ?uvre qui peuvent être exigées pour spécifier un matériau. Si de telles caractéristiques supplémentaires sont nécessaires, elles doivent être déterminées conformément aux méthodes d'essai spécifiées dans l'ISO 20028‑2, s'il y a lieu.
Afin de spécifier un matériau polyester thermoplastique répondant à des spécifications particulières, les exigences doivent être codées dans le bloc de données 5 (voir 4.1).

Polimerni materiali - Materiali za oblikovanje in ekstrudiranje iz plastomernih poliestrov - 1. del: Sistem označevanja in podlage za specifikacije (ISO 20028-1:2017)

Ta dokument določa sistem označevanja materialov iz plastomernih poliestrov (TP), ki jih je mogoče uporabiti kot podlago za specifikacije. Zajema poliestrske homopolimere za oblikovanje in ekstrudiranje na osnovi poli(etilen tereftalata) (PET), poli(butilen tereftalata) (PBT), poli(cikloheksilendimetilen tereftalata) (PCT), poli(etilen naftalata) (PEN), poli(butilen naftalata) (PBN) in druge vrste plastomernih poliestrov in kopoliestrov različnih kompozitov za oblikovanje in ekstrudiranje.
Vrste plastomernih poliestrov se med seboj ločujejo glede na sistem razvrščanja, ki temelji na ustreznih ravneh označevalnih lastnosti:
a) viskoznostnem številu;
b) nateznih modulih elastičnosti;
ter informacijah o predvideni uporabi in/ali metodi obdelave, pomembnih lastnostih, aditivih, barvilih, polnilih in materialih za ojačanje.
Ta sistem označevanja se uporablja za plastomerne poliestrske homopolimere in kopolimere. Uporablja se za materiale v obliki praška, granul ali peletov, pripravljenih za običajno uporabo, nespremenjenih ali spremenjenih z barvili, polnili in drugimi aditivi. Ta dokument se ne uporablja za nasičene plastomerne elastomere poliester/ester in polieter/ester iz standarda ISO 20029.
Materiali z enako oznako nimajo nujno tudi enakih lastnosti. Ta dokument ne zagotavlja inženirskih podatkov, podatkov o delovanju ali podatkov o pogojih obdelave, ki so mogoče potrebni za določitev materiala. Če so take dodatne lastnosti zahtevane, se določijo v skladu s preskusnimi metodami iz standarda ISO 20028-2, če je to primerno.
Da bi se določil material iz plastomernih poliestrov, ki ustreza določenim specifikacijam, se v podatkovnem bloku 5 navedejo dodatne zahteve (glej točko 3.1).

General Information

Status
Withdrawn
Public Enquiry End Date
29-Sep-2015
Publication Date
13-Apr-2017
Withdrawal Date
03-Nov-2019
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
04-Nov-2019
Due Date
27-Nov-2019
Completion Date
04-Nov-2019

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SLOVENSKI STANDARD
SIST EN ISO 20028-1:2017
01-junij-2017
1DGRPHãþD
SIST EN ISO 7792-1:2014
3ROLPHUQLPDWHULDOL0DWHULDOL]DREOLNRYDQMHLQHNVWUXGLUDQMHL]SODVWRPHUQLK
SROLHVWURYGHO6LVWHPR]QDþHYDQMDLQSRGODJH]DVSHFLILNDFLMH ,62

Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 1:
Designation system and basis for specification (ISO 20028-1:2017)
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 1:
Bezeichnungssystem und Basis für Spezifikationen (ISO 20028-1:2017)
Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion — Partie 1 :
Système de désignation et base de spécification (ISO 20028-1:2017)
Ta slovenski standard je istoveten z: EN ISO 20028-1:2017
ICS:
83.080.20 Plastomeri Thermoplastic materials
SIST EN ISO 20028-1:2017 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20028-1:2017

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SIST EN ISO 20028-1:2017


EN ISO 20028-1
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2017
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 7792-1:2012
English Version

Plastics - Thermoplastic polyester (TP) moulding and
extrusion materials - Part 1: Designation system and basis
for specifications (ISO 20028-1:2017)
Plastiques - Matériaux polyesters thermoplastiques Kunststoffe - Thermoplastische Polyester (TP)-
(TP) pour moulage et extrusion - Partie 1: Système de Werkstoffe - Teil 1: Bezeichnungssystem und Basis für
désignation et base de spécification (ISO 20028- Spezifikationen (ISO 20028-1:2017)
1:2017)
This European Standard was approved by CEN on 3 February 2017.

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, 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 United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20028-1:2017 E
worldwide for CEN national Members.

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SIST EN ISO 20028-1:2017
EN ISO 20028-1:2017 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 20028-1:2017
EN ISO 20028-1:2017 (E)
European foreword
This document (EN ISO 20028-1:2017) has been prepared by Technical Committee ISO/TC 61 "Plastics"
in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by
NBN.
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 September 2017, and conflicting national standards
shall be withdrawn at the latest by September 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 7792-1:2012.
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, 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.
Endorsement notice
The text of ISO 20028-1:2017 has been approved by CEN as EN ISO 20028-1:2017 without any
modification.


3

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SIST EN ISO 20028-1:2017

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SIST EN ISO 20028-1:2017
INTERNATIONAL ISO
STANDARD 20028-1
First edition
2017-03
Plastics — Thermoplastic polyester
(TP) moulding and extrusion
materials —
Part 1:
Designation system and basis for
specifications
Plastiques — Matériaux polyesters thermoplastiques (TP) pour
moulage et extrusion —
Partie 1: Système de désignation et base de spécification
Reference number
ISO 20028-1:2017(E)
©
ISO 2017

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SIST EN ISO 20028-1:2017
ISO 20028-1:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

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SIST EN ISO 20028-1:2017
ISO 20028-1:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Designation system . 2
4.1 General . 2
4.2 Data block 1 . 2
4.3 Data block 2 . 3
4.4 Data block 3 . 4
4.5 Data block 4 . 5
4.5.1 General. 5
4.5.2 Viscosity number . 5
4.5.3 Tensile modulus of elasticity . 6
4.6 Data block 5 . 7
5 Examples of designations . 7
5.1 Designation only . 7
5.2 Designation transformed into a specification . 9
Annex A (normative) Designation of thermoplastic polyesters .10
Bibliography .13
© ISO 2017 – All rights reserved iii

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SIST EN ISO 20028-1:2017
ISO 20028-1:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www . i so .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9,
Thermoplastic materials.
This first edition of ISO 20028-1 cancels and replaces ISO 7792-1:2012, which has been technically
revised to introduce a new designation system.
The revised designation system is published under a new ISO number, as many existing documents
refer to ISO 7792-1. If the existing ISO 7792-1 would be replaced by the new designation system, these
documents would refer to the incorrect designation system.
In order to give users time to switch from ISO 7792-1 to ISO 20028-1, any designation system according
to ISO 7792-1 is to be phased out in 5 to 10 years.
A list of all parts in the ISO 20028 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

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SIST EN ISO 20028-1:2017
ISO 20028-1:2017(E)

Introduction
ISO 7792-1 is complex and does not fit with daily practice anymore. In practice, ISO 1043 and ISO 11469
are, in combination, “improperly” being used as a designation system for, for example, marking. The
aim of this revision is to simplify the data block system and to connect more to ISO 1043 and ISO 11469,
where the first two blocks are used for generic identification and marking of products.
© ISO 2017 – All rights reserved v

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SIST EN ISO 20028-1:2017

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SIST EN ISO 20028-1:2017
INTERNATIONAL STANDARD ISO 20028-1:2017(E)
Plastics — Thermoplastic polyester (TP) moulding and
extrusion materials —
Part 1:
Designation system and basis for specifications
1 Scope
This document establishes a system of designation for thermoplastic polyester (TP) material,
which can be used as the basis for specifications. It covers polyester homopolymers for moulding
and extrusion based on poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT),
poly(cyclohexylenedimethylene terephthalate) (PCT), poly(ethylene naphthalate) (PEN), poly(butylene
naphthalates) (PBN) and other TP-types and copolyesters of various compositions for moulding and
extrusion.
The types of thermoplastic polyester are differentiated from each other by a classification system
based on appropriate levels of the designatory properties:
a) viscosity number;
b) tensile modulus of elasticity;
and on information about the intended application and/or method of processing, important properties,
additives, colorants, fillers and reinforcing materials.
This designation system is applicable to thermoplastic polyester homopolymers and copolymers. It
applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or
modified by colorants, fillers and other additives. This document does not apply to the saturated
polyester/ester and polyether/ester thermoplastic elastomers covered by ISO 20029.
It is not intended to imply that materials having the same designation give necessarily the same
performance. This document does not provide engineering data, performance data or data on processing
conditions which can be required to specify a material. If such additional properties are required, they
are intended to be determined in accordance with the test methods specified in ISO 20028-2, if suitable.
In order to designate a thermoplastic polyester material to meet particular specifications, the
requirements are to be given in data block 5 (see 3.1).
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.
ISO 1043-1, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special
characteristics
ISO 1043-2, Plastics — Symbols and abbreviated terms — Part 2: Fillers and reinforcing materials
ISO 1628-5, Plastics — Determination of the viscosity of polymers in dilute solution using capillary
viscometers — Part 5: Thermoplastic polyester (TP) homopolymers and copolymers
ISO 20028-2, Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 2:
Preparation of test specimens and determination of properties
© ISO 2017 – All rights reserved 1

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SIST EN ISO 20028-1:2017
ISO 20028-1:2017(E)

ASTM D5927, Standard Classification System for and Basis for Specifications for Thermoplastic Polyester
(TPES) Injection and Extrusion Materials Based on ISO Test Methods
3 Terms and definitions
No terms and definitions are listed in this document.
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 Designation system
4.1 General
The designation system for thermoplastics is based on the following standardized pattern.
Designation
Description Identity block
Block International Individual item block
(optional) Standard
number Data block 1 Data block 2 Data block 3 Data block 4 Data block 5
block
The designation consists of an optional description block, reading “Thermoplastics”, and an identity
block comprising the International Standard number and an individual-item block. For unambiguous
designation, the individual-item block is subdivided into five data blocks comprising the following
information.
— Data block 1: Identification of the plastic by its symbol PET, PBT, PCT, PEN, PBN or TP for all such
polyesters and copolyesters in general, in accordance with ISO 1043-1 (see 4.2).
— Data block 2: Position 1: Fillers or reinforcing materials and their nominal content (see 4.3).
Position 2: Declaration of recyclate (REC) plastics and their contents if desired.
— Data block 3: Position 1: Intended application and/or method of processing (see 4.4).
Positions 2 to 8: Important properties, additives and supplementary information
(see 4.4).
— Data block 4: Designatory properties (see 4.5).
— Data block 5: For the purpose of specifications, a fifth data block contains appropriate information
(see 4.6).
The first character of the individual item block shall be a hyphen. The five data blocks shall be separated
from each other by a comma. If a data block is not used, this shall be indicated by doubling the separation
sign, i.e. by two commas (,,). Terminal commas may be omitted.
NOTE Data blocks 1 and 2, when separated by a hyphen, form the part marking symbol
4.2 Data block 1
In this data block, after the hyphen, thermoplastic polyesters are identified using the symbols and
designations listed in Table 1 and Table 2.
2 © ISO 2017 – All rights reserved

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SIST EN ISO 20028-1:2017
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