SIST EN ISO 20028-2:2017
(Main)Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 20028-2:2017)
Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 20028-2:2017)
ISO 20028-2:2017 specifies the methods of preparation of test specimens and the standard test methods to be used in determining the properties of thermoplastic polyester moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given.
Procedures and conditions for the preparation of test specimens in a specified state and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize thermoplastic polyester moulding and extrusion materials are listed.
The properties have been selected from the general test methods in ISO 10350‑1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 20028-1 (viscosity number and tensile modulus of elasticity).
In order to obtain reproducible and comparable test results, it is necessary to use the methods of specimen preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 2: Herstellung von Probekörpern und Bestimmung von Eigenschaften (ISO 20028-2:2017)
Dieses Dokument legt die Verfahren zur Herstellung von Probekörpern und die zur Bestimmung der Eigen-schaften thermoplastischer Polyester (TP) Werkstoffe anzuwendenden Normprüfverfahren fest. Die An-forderungen an die Behandlung des Prüfmaterials und an das Konditionieren des Prüfmaterials sowohl vor dem Formen der Probekörper als auch der Probekörper vor der Prüfung sind angegeben.
Verfahren und Bedingungen für die Herstellung der Probekörper in einem festgelegten Zustand sowie Ver-fahren für die Bestimmung der Eigenschaften der Werkstoffe, aus denen die Probekörper hergestellt werden, sind angegeben. Eigenschaften und Prüfverfahren, die anwendbar und notwendig sind, um den thermoplastischen Polyester Werkstoff zu charakterisieren, sind aufgelistet.
Die Eigenschaften wurden aus den allgemeinen Prüfverfahren in ISO 10350-1 ausgewählt. Andere weithin gebräuchliche Prüfverfahren oder solche, die von besonderer Bedeutung für diese Werkstoffe sind, sowie die kennzeichnenden Eigenschaften in ISO 20028-1 (Viskositätszahl und Zugelastizitätsmodul), sind ebenfalls in diesem Dokument enthalten.
Um reproduzierbare und vergleichbare Prüfergebnisse zu erhalten, ist es notwendig, die in dieser Norm festgelegten Verfahren für die Herstellung und Konditionierung der Probekörper, die Probekörpermaße und die Prüfverfahren anzuwenden. Die ermittelten Werte sind nicht unbedingt identisch mit denen, die an Probe¬körpern mit anderen Maßen oder an mit unterschiedlichen Verfahren hergestellten Probekörpern erhalten wurden.
Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion - Partie 2 : Préparation des éprouvettes et détermination des propriétés (ISO 20028-2:2017)
ISO 20028-2:2017 spécifie les méthodes de préparation des éprouvettes et les méthodes d'essai normalisées qui doivent être utilisées pour la détermination des propriétés des matériaux polyesters thermoplastiques (TP) pour moulage et extrusion. Les exigences relatives à la manipulation du matériau d'essai et au conditionnement du matériau d'essai avant moulage et des éprouvettes avant essai sont indiquées.
Les modes opératoires et les conditions nécessaires à la préparation des éprouvettes dans un état défini, ainsi que les modes opératoires de mesure des propriétés des matériaux à partir desquels les éprouvettes sont obtenues sont donnés. Les propriétés et méthodes d'essai qui sont utiles et nécessaires pour caractériser les matériaux polyesters thermoplastiques pour moulage et extrusion sont énumérées.
Les propriétés ont été sélectionnées parmi les méthodes d'essai générales de l'ISO 10350‑1. D'autres méthodes d'essai largement en usage ou ayant une signification particulière pour ces matériaux pour moulage et extrusion sont aussi incluses dans le présent document; c'est le cas des propriétés de désignation spécifiées dans l'ISO 20028‑1 (indice de viscosité et module d'élasticité en traction).
Dans le but d'obtenir des résultats d'essai reproductibles et comparables, il est nécessaire d'utiliser les méthodes de préparation et de conditionnement, les dimensions d'éprouvette ainsi que les modes opératoires d'essai spécifiés ici. Les valeurs déterminées ne seront pas nécessairement identiques à celles obtenues en utilisant des éprouvettes de dimensions différentes ou préparées selon des modes opératoires différents.
Polimerni materiali - Materiali za oblikovanje in ekstrudiranje iz plastomernih poliestrov - 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO 20028-2:2017)
Ta dokument določa metode za pripravo preskušancev in standardnih preskusnih metod za uporabo pri ugotavljanju lastnosti materialov iz termoplastnih poliestrov za oblikovanje in ekstrudiranje. Podane so zahteve za ravnanje s preskusnim materialom ter za obdelavo preskusnega materiala pred oblikovanjem in obdelavo preskušancev pred preskusom.
Podani so postopki in pogoji za pripravo preskušancev v določenem stanju in postopki za merjenje lastnosti materialov, iz katerih so preskušanci izdelani. Navedene so lastnosti in preskusne metode, ki so primerne in nujne za opredelitev navedenih materialov za oblikovanje in ekstrudiranje iz plastomernih poliestrov.
Lastnosti so bile izbrane na podlagi splošnih preskusnih metod iz standarda ISO 10350-1. Druge preskusne metode, ki so v splošni uporabi ali posebej pomembne za te materiale za oblikovanje in ekstrudiranje, so prav tako vključene v ta dokument. Vključene so tudi označevalne lastnosti, ki so navedene v standardu ISO 20028-1 (viskoznostno število in natezni modul elastičnosti).
Da se zagotovijo primerljivi in ponovljivi rezultati preskusa, je potrebno uporabljati metode priprave in obdelave, mere preskušanca ter preskusne postopke, ki so navedeni v tem delu. Pri tem ni nujno, da bodo ugotovljene vrednosti enake tistim, ki so pridobljene z uporabo preskušancev, ki imajo drugačne mere ali so pripravljeni z uporabo drugih postopkov.
General Information
- Status
- Published
- Public Enquiry End Date
- 29-Sep-2015
- Publication Date
- 17-Apr-2017
- Technical Committee
- IPMA - Polimer materials and products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 06-Apr-2017
- Due Date
- 11-Jun-2017
- Completion Date
- 18-Apr-2017
Relations
- Effective Date
- 04-Apr-2017
- Effective Date
- 01-Sep-2015
Overview
EN ISO 20028-2:2017 - Plastics: Thermoplastic polyester (TP) moulding and extrusion materials, Part 2 describes standardized methods for preparing test specimens and for determining the physical, thermal and mechanical properties of thermoplastic polyester (TP) moulding and extrusion materials. The document defines specimen preparation by injection moulding, handling and conditioning requirements, and the specific test methods (many drawn from ISO 10350‑1 and other established test standards) needed to obtain reproducible and comparable data.
Key topics and technical requirements
- Specimen preparation method: Test specimens shall be prepared by injection moulding using consistent processing procedures.
- Moisture control: Material moisture content before processing shall not exceed 0.02% (by mass); filled materials use this limit relative to total compound mass. Samples should be stored in moisture‑proof containers.
- Pre‑processing handling: Recommendations include blanketing the feed hopper with dried gas (dried air, N2, Ar) or using a dehumidifier hopper dryer to maintain low moisture.
- Injection‑moulding conditions: The standard provides a table of recommended conditions (melt and mould temperatures by material type, e.g. PBT, PET, PCT, PEN, PBN), and general parameters such as injection velocity 200 ± 100 mm/s, hold time 20 ± 5 s and total cycle 40 ± 5 s to ensure consistent specimen state.
- Conditioning of specimens: Specifies standard atmospheres and conditioning procedures before testing to ensure comparable results.
- Properties covered: Lists properties suitable to characterize TP moulding/extrusion materials - many selected from ISO 10350‑1 - and includes designatory properties from ISO 20028‑1 such as viscosity number and tensile modulus of elasticity.
- Reproducibility warning: Results are comparable only when the specified specimen dimensions, preparation and test procedures are followed; different specimen geometries or procedures can yield different values.
Applications and users
EN ISO 20028-2:2017 is used for:
- Material characterization and material data sheets for thermoplastic polyesters (PBT, PET, etc.).
- Quality control in polymer production and compounding to verify batch-to-batch consistency.
- Product design and R&D where accurate mechanical, thermal and flow properties are needed for simulation and component specification.
- Independent test laboratories and certification bodies performing standardized property testing.
- Procurement and specification by OEMs and engineers who require comparable, traceable material data.
Typical users: polymer processors, injection‑moulding shops, materials scientists, testing laboratories, OEM engineers, and standards/quality managers.
Related standards
Important referenced standards include ISO 10350‑1, ISO 20028‑1, ISO 294‑1, ISO 20753, ISO 62, ISO 527‑2, and various ISO/IEC and IEC test methods for thermal and electrical properties. These provide complementary test methods, specimen dimensions and conditioning procedures.
Frequently Asked Questions
SIST EN ISO 20028-2:2017 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 20028-2:2017)". This standard covers: ISO 20028-2:2017 specifies the methods of preparation of test specimens and the standard test methods to be used in determining the properties of thermoplastic polyester moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given. Procedures and conditions for the preparation of test specimens in a specified state and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize thermoplastic polyester moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350‑1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 20028-1 (viscosity number and tensile modulus of elasticity). In order to obtain reproducible and comparable test results, it is necessary to use the methods of specimen preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
ISO 20028-2:2017 specifies the methods of preparation of test specimens and the standard test methods to be used in determining the properties of thermoplastic polyester moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given. Procedures and conditions for the preparation of test specimens in a specified state and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize thermoplastic polyester moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350‑1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 20028-1 (viscosity number and tensile modulus of elasticity). In order to obtain reproducible and comparable test results, it is necessary to use the methods of specimen preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
SIST EN ISO 20028-2:2017 is classified under the following ICS (International Classification for Standards) categories: 83.080.20 - Thermoplastic materials. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 20028-2:2017 has the following relationships with other standards: It is inter standard links to SIST EN ISO 7792-2:2014, SIST EN ISO 7792-2:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 20028-2:2017 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2017
1DGRPHãþD
SIST EN ISO 7792-2:2014
Polimerni materiali - Materiali za oblikovanje in ekstrudiranje iz plastomernih
poliestrov - 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO 20028-
2:2017)
Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2:
Preparation of test specimens and determination of properties (ISO 20028-2:2017)
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 2: Herstellung von
Probekörpern und Bestimmung von Eigenschaften (ISO 20028-2:2017)
Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion - Partie 2 :
Préparation des éprouvettes et détermination des propriétés (ISO 20028-2:2017)
Ta slovenski standard je istoveten z: EN ISO 20028-2:2017
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 20028-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2017
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 7792-2:2012
English Version
Plastics - Thermoplastic polyester (TP) moulding and
extrusion materials - Part 2: Preparation of test specimens
and determination of properties (ISO 20028-2:2017)
Plastiques - Matériaux polyesters thermoplastiques Kunststoffe - Thermoplatische Polyester (TP)-
(TP) pour moulage et extrusion - Partie 2: Préparation Werkstoffe - Teil 2: Herstellung von Probekörpern und
des éprouvettes et détermination des propriétés (ISO Bestimmung von Eigenschaften (ISO 20028-2:2017)
20028-2:2017)
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 20028-2:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 20028-2:2017) 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 7792-2:2012.
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 20028-2:2017 has been approved by CEN as EN ISO 20028-2:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 20028-2
First edition
2017-03
Plastics — Thermoplastic polyester
(TP) moulding and extrusion
materials —
Part 2:
Preparation of test specimens and
determination of properties
Plastiques — Matériaux polyesters thermoplastiques (TP) pour
moulage et extrusion —
Partie 2: Préparation des éprouvettes et détermination des propriétés
Reference number
ISO 20028-2:2017(E)
©
ISO 2017
ISO 20028-2:2017(E)
© 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
ISO 20028-2:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Preparation of test specimens . 3
4.1 General . 3
4.2 Treatment of the material before moulding . 3
4.3 Injection moulding . 3
5 Conditioning of test specimens . 4
6 Determination of properties . 4
Bibliography . 7
ISO 20028-2:2017(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 20028-2 cancels and replaces ISO 7792-2:2012, which has been technically
revised.
A list of all parts in the ISO 20028 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved
INTERNATIONAL STANDARD ISO 20028-2:2017(E)
Plastics — Thermoplastic polyester (TP) moulding and
extrusion materials —
Part 2:
Preparation of test specimens and determination of
properties
1 Scope
This document specifies the methods of preparation of test specimens and the standard test methods
to be used in determining the properties of thermoplastic polyester moulding and extrusion materials.
Requirements for handling test material and for conditioning both the test material before moulding
and the specimens before testing are given.
Procedures and conditions for the preparation of test specimens in a specified state and procedures for
measuring properties of the materials from which these specimens are made are given. Properties and
test methods which are suitable and necessary to characterize thermoplastic polyester moulding and
extrusion materials are listed.
The properties have been selected from the general test methods in ISO 10350-1. Other test methods in
wide use for or of particular significance to these moulding and extrusion materials are also included
in this document, as are the designatory properties specified in ISO 20028-1 (viscosity number and
tensile modulus of elasticity).
In order to obtain reproducible and comparable test results, it is necessary to use the methods of
specimen preparation and conditioning, the specimen dimensions and the test procedures specified
herein. Values determined will not necessarily be identical to those obtained using specimens of
different dimensions or prepared using different procedures.
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 62, Plastics — Determination of water absorption
ISO 75-2, Plastics — Determination of temperature of de
...
SLOVENSKI STANDARD
oSIST prEN ISO 20028-2:2015
01-september-2015
Polimerni materiali - Materiali za oblikovanje in ekstrudiranje iz plastomernih
poliestrov - 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO/DIS 20028-
2:2015)
Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2:
Preparation of test specimens and determination of properties (ISO/DIS 20028-2:2015)
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 2: Herstellung von
Probekörpern und Bestimmung von Eigenschaften (ISO/DIS 20028-2:2015)
Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion - Partie 2 :
Préparation des éprouvettes et détermination des propriétés (ISO/DIS 20028-2:2015)
Ta slovenski standard je istoveten z: prEN ISO 20028-2
ICS:
83.080.20 Plastomeri Thermoplastic materials
oSIST prEN ISO 20028-2:2015 de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 20028-2:2015
oSIST prEN ISO 20028-2:2015
EUROPÄISCHE NORM
ENTWURF
prEN ISO 20028-2
EUROPEAN STANDARD
NORME EUROPÉENNE
Juni 2015
ICS 83.080.20 Vorgesehen als Ersatz für EN ISO 7792-2:2012
Deutsche Fassung
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen -
Teil 2: Herstellung von Probekörpern und Bestimmung von
Eigenschaften (ISO/DIS 20028-2:2015)
Plastics - Thermoplastic polyester (TP) moulding and Plastiques - Polyesters thermoplastiques (TP) pour
extrusion materials - Part 2: Preparation of test specimens moulage et extrusion - Partie 2 : Préparation des
and determination of properties (ISO/DIS 20028-2:2015) éprouvettes et détermination des propriétés (ISO/DIS
20028-2:2015)
Dieser Europäische Norm-Entwurf wird den CEN-Mitgliedern zur parallelen Umfrage vorgelegt. Er wurde vom Technischen Komitee
CEN/TC 249 erstellt.
Wenn aus diesem Norm-Entwurf eine Europäische Norm wird, sind die CEN-Mitglieder gehalten, die CEN-Geschäftsordnung zu erfüllen, in
der die Bedingungen festgelegt sind, unter denen dieser Europäischen Norm ohne jede Änderung der Status einer nationalen Norm zu
geben ist.
Dieser Europäische Norm-Entwurf wurde vom CEN in drei offiziellen Fassungen (Deutsch, Englisch, Französisch) erstellt. Eine Fassung in
einer anderen Sprache, die von einem CEN-Mitglied in eigener Verantwortung durch Übersetzung in seine Landessprache gemacht und
dem Management-Zentrum des CEN-CENELEC mitgeteilt worden ist, hat den gleichen Status wie die offiziellen Fassungen.
CEN-Mitglieder sind die nationalen Normungsinstitute von Belgien, Bulgarien, Dänemark, Deutschland, der ehemaligen jugoslawischen
Republik Mazedonien, Estland, Finnland, Frankreich, Griechenland, Irland, Island, Italien, Kroatien, Lettland, Litauen, Luxemburg, Malta,
den Niederlanden, Norwegen, Österreich, Polen, Portugal, Rumänien, Schweden, der Schweiz, der Slowakei, Slowenien, Spanien, der
Tschechischen Republik, der Türkei, Ungarn, dem Vereinigten Königreich und Zypern.
Die Empfänger dieses Norm-Entwurfs werden gebeten, mit ihren Kommentaren jegliche relevante Patentrechte, die sie kennen, mitzuteilen
und unterstützende Dokumentationen zur Verfügung zu stellen.
Warnvermerk : Dieses Schriftstück hat noch nicht den Status einer Europäischen Norm. Es wird zur Prüfung und Stellungnahme
vorgelegt. Es kann sich noch ohne Ankündigung ändern und darf nicht als Europäischen Norm in Bezug genommen werden.
EUROPÄISCHES KOMITEE FÜR NORMUNG
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
CEN-CENELEC Management-Zentrum: Avenue Marnix 17, B-1000 Brüssel
© 2015 CEN Alle Rechte der Verwertung, gleich in welcher Form und in welchem Ref. Nr. prEN ISO 20028-2:2015 D
Verfahren, sind weltweit den nationalen Mitgliedern von CEN vorbehalten.
oSIST prEN ISO 20028-2:2015
prEN ISO 20028-2:2015 (D)
Inhalt
Seite
Vorwort .3
1 Anwendungsbereich .4
2 Normative Verweisungen .4
3 Herstellung der Probekörper .6
3.1 Allgemeines .6
3.1 Vorbehandlung der Formmasse .6
3.2 Spritzgießen .6
4 Konditionieren der Probekörper .7
5 Bestimmung von Eigenschaften .8
oSIST prEN ISO 20028-2:2015
prEN ISO 20028-2:2015 (D)
Vorwort
Dieses Dokument (prEN ISO 20028-2:2015) wurde vom Technischen Komitee ISO/TC 61 „Plastics“ in
Zusammenarbeit mit dem Technischen Komitee CEN/TC 249 „Kunststoffe“ erarbeitet, dessen Sekretariat vom
NBN gehalten wird.
Dieses Dokument ist derzeit zur parallelen Umfrage vorgelegt.
Dieses Dokument wird DIN EN ISO 7792-2:2013-03 ersetzen.
ISO 20028 besteht unter dem allgemeinen Titel Plastics — Thermoplastic polyester (TP) moulding and
extrusion materials, aus den folgenden Teilen:
Part 2: Preparation of test specimen and determination of properties
Part 1: Designation system and basis for specification
Anerkennungsnotiz
Der Text von ISO/DIS 20028-2:2015 wurde vom CEN als prEN ISO 20028-2:2015 ohne irgendeine
Abänderung genehmigt.
oSIST prEN ISO 20028-2:2015
prEN ISO 20028-2:2015 (D)
1 Anwendungsbereich
Dieser Teil von ISO 20028 legt die Verfahren zur Herstellung von Probekörpern und die zur Bestimmung der
Eigenschaften für Formmassen thermoplastischer Polyester (TP) anzuwendenden Normprüfverfahren fest.
Die Anforderungen an die Behandlung des Prüfmaterials und an die Konditionierung des Prüfmaterials vor der
Formgebung der Probekörper und der Probekörper vor der Prüfung sind ebenfalls angegeben.
Verfahren und Bedingungen für die Herstellung der Probekörper in einem festgelegten Zustand sowie Ver-
fahren für die Bestimmung der Eigenschaften der Formmassen, aus denen die Probekörper hergestellt werden,
sind angegeben. Eigenschaften und Prüfverfahren, die anwendbar und notwendig sind, um die thermo-
plastischer Polyester-Formmassen zu charakterisieren, sind aufgelistet.
Die Eigenschaften wurden aus den allgemeinen Prüfverfahren in ISO 10350-1 ausgewählt. Andere weithin
gebräuchliche Prüfverfahren oder die von besonderer Bedeutung für diese Formmassen sind, wie die
kennzeichnenden Eigenschaften aus Teil 1 dieser Norm (Viskositätszahl und Zugelastizitätsmodul), sind
ebenfalls in diesem Teil von ISO 20028 enthalten.
Um reproduzierbare und vergleichbare Prüfergebnisse zu erhalten, ist es notwendig, die in dieser Norm fest-
gelegten Verfahren für die Herstellung und Konditionierung der Probekörper, die Probekörpermaße und die
Prüfverfahren anzuwenden. Die ermittelten Werte sind nicht unbedingt identisch mit denen, die an Probe-
körpern mit anderen Maßen oder an mit unterschiedlichen Verfahren hergestellten Probekörpern erhalten
wurden.
2 Normative Verweisungen
Die folgenden Dokumente, die in diesem Dokument teilweise oder als Ganzes zitiert werden, sind für die
Anwendung dieses Dokuments erforderlich. Bei datierten Verweisungen gilt nur die in Bezug genommene
Ausgabe. Bei undatierten Verweisungen gilt die letzte Ausgabe des in Bezug genommenen Dokuments
(einschließlich aller Änderungen).
ISO 62, Plastics — Determination of water absorption
ISO 75-2, Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite
ISO 178, Plastics — Determination of flexural properties
ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test
ISO 291, Plastics — Standard atmospheres for conditioning and testing
ISO 294-1, Plastics — Injection moulding of test specimens of thermoplastic materials — Part 1: General
principles, and moulding of multipurpose and bar test specimens
ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and
extrusion plastics
ISO 1133-2, Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of
thermoplastics — Part 2: Method for materials sensitive to time-temperature history and/or moisture
ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion
method, liquid pyknometer method and titration method
ISO 1183-2, Plastics — Methods for determining the density of non-cellular plastics — Part 2: Density gradient
column method
oSIST prEN ISO 20028-2:2015
prEN ISO 20028-2:2015 (D)
ISO 1183-3, Plastics — Methods for determining the density of non-cellular plastics — Part 3: Gas
pyknometer method
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 3451-2, Plastics — Determination of ash — Part 2: Poly(alkylene terephthalate) materials
ISO 4589-2, Plastics — Determination of burning behaviour by oxygen index — Part 2: Ambient-temperature
test
ISO 10350-1, Plastics — Acquisition and presentation of comparable single-point data — Part 1: Moulding
materials
ISO 11357-2, Plastics — Differential scanning calorimetry (DSC) — Part 2: Determination of glass transition
temperature and glass transition step height
ISO 11357-3, Plastics — Differential scanning calorimetry (DSC) — Part 3: Determination of temperature and
enthalpy of melting and crystallization
ISO 11359-2, Plastics — Thermomechanical analysis (TMA) — Part 2: Determination of coefficient of linear
thermal expansion and glass transition temperature
ISO 20753, Plastics — Test specimens
IEC 60093, Solid electrical insulating materials — Method of test for volume resistivity and surface resistivity
IEC 60112, Method for the determination of the proof and the comparative tracking indices of solid insulating
materials
IEC 60243-1, Electrical strength of insulating materials — Test methods — Part 1: Tests at power frequencies
IEC 60250, Recommended methods for the deter
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