Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 24026-2:2020)

1.1 This document specifies the methods of preparation of test specimens and the test methods to
be used in determining the properties of poly(methyl methacrylate) (PMMA) moulding and extrusion
materials. It gives the requirements for handling test material and for conditioning both the test material
before moulding and the specimens before testing.
1.2 This document specifies procedures and conditions for the preparation of test specimens and
procedures for measuring properties of the materials from which these specimens are made. It lists
properties and test methods which are suitable and necessary to characterize poly(methyl methacrylate)
moulding and extrusion materials.
1.3 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 24026-1.

Kunststoffe - Polymethylmethacrylat (PMMA)-Werkstoffe - Teil 2: Herstellung von Probekörpern und Bestimmung von Eigenschaften (ISO 24026-2:2020)

1.1   Dieses Dokument legt die Verfahren zur Herstellung von Probekörpern und die anzuwendenden Prüfverfahren zur Bestimmung der Eigenschaften von Polymethylmethacrylat (PMMA)-Formmassen fest. Es enthält die Anforderungen hinsichtlich der Handhabung des Prüfwerkstoffs und hinsichtlich der Konditionierung des Prüfwerkstoffs vor der Formgebung und der Probekörper vor dem Prüfen.
1.2   Dieses Dokument legt Verfahren und Bedingungen für die Herstellung von Probekörpern und Verfahren zur Messung der Eigenschaften der Materialien, aus denen diese Probekörper bestehen, fest. In ihm werden Eigenschaften und Prüfverfahren, die zur Charakterisierung von Polymethylmethacrylat (PMMA)-Formmassen geeignet und notwendig sind, aufgeführt.
1.3   Die Eigenschaften wurden aus den allgemeinen Prüfverfahren in ISO 10350 1 ausgewählt. Andere Prüfverfahren, die für diese Formmassen breite Anwendung finden oder für diese von besonderer Bedeutung sind, sind ebenfalls in diesem Dokument enthalten, ebenso wie die in ISO 24026 1 festgelegten bezeichnenden Eigenschaften.

Plastiques - Matériaux à base de poly(méthacrylate de méthyle) (PMMA) pour moulage et extrusion - Partie 2: Préparation des éprouvettes et détermination des propriétés (ISO 24026-2:2020)

1.1 Le présent document spécifie les méthodes de préparation des éprouvettes et les méthodes d'essai qui doivent être utilisées pour la détermination des propriétés des matériaux pour moulage et extrusion à base de poly(méthacrylate de méthyle) (PMMA). Il donne les exigences relatives à la manipulation du matériau d'essai et au conditionnement du matériau d'essai avant moulage et des éprouvettes avant essai.
1.2 Le présent document spécifie les modes opératoires et les conditions nécessaires à la préparation des éprouvettes, ainsi que les modes opératoires de mesure des propriétés des matériaux à partir desquels les éprouvettes sont obtenues sont donnés. Il liste les propriétés et méthodes d'essai qui sont utiles et nécessaires pour caractériser les matériaux pour moulage et extrusion à base de poly(méthacrylate de méthyle).
1.3 Les propriétés ont été sélectionnées parmi les méthodes d'essai générales de l'ISO 10350-1. D'autres méthodes d'essai largement utilisées ou qui revêtent une importance 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 24026‑1.

Polimerni materiali - Materiali na osnovi polimetilmetakrilata (PMMA) za oblikovanje in ekstrudiranje - 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO 24026-2:2020)

General Information

Status
Published
Public Enquiry End Date
16-Jun-2019
Publication Date
09-Jul-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2020
Due Date
05-Sep-2020
Completion Date
10-Jul-2020

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SLOVENSKI STANDARD
SIST EN ISO 24026-2:2020
01-oktober-2020
Nadomešča:
SIST EN ISO 8257-2:2006
Polimerni materiali - Materiali na osnovi polimetilmetakrilata (PMMA) za
oblikovanje in ekstrudiranje - 2. del: Priprava preskušancev in ugotavljanje
lastnosti (ISO 24026-2:2020)

Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 2:

Preparation of test specimens and determination of properties (ISO 24026-2:2020)
Kunststoffe - Polymethylmethacrylat (PMMA)-Werkstoffe - Teil 2: Herstellung von
Probekörpern und Bestimmung von Eigenschaften (ISO 24026-2:2020)

Plastiques - Matériaux à base de poly(méthacrylate de méthyle) (PMMA) pour moulage

et extrusion - Partie 2: Préparation des éprouvettes et détermination des propriétés (ISO

24026-2:2020)
Ta slovenski standard je istoveten z: EN ISO 24026-2:2020
ICS:
83.080.20 Plastomeri Thermoplastic materials
SIST EN ISO 24026-2:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 24026-2:2020
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SIST EN ISO 24026-2:2020
EN ISO 24026-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 8257-2:2006
English Version
Plastics - Poly(methyl methacrylate) (PMMA) moulding
and extrusion materials - Part 2: Preparation of test
specimens and determination of properties (ISO 24026-
2:2020)

Plastiques - Matériaux à base de poly(méthacrylate de Kunststoffe - Polymethylmethacrylat (PMMA)-

méthyle) (PMMA) pour moulage et extrusion - Partie 2: Formmassen - Teil 2: Herstellung von Probekörpern

Préparation des éprouvettes et détermination des und Bestimmung von Eigenschaften (ISO 24026-

propriétés (ISO 24026-2:2020) 2:2020)
This European Standard was approved by CEN on 21 May 2020.

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, 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. EN ISO 24026-2:2020 E

worldwide for CEN national Members.
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SIST EN ISO 24026-2:2020
EN ISO 24026-2:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 24026-2:2020
EN ISO 24026-2:2020 (E)
European foreword

This document (EN ISO 24026-2:2020) 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 December 2020, and conflicting national standards

shall be withdrawn at the latest by December 2020.

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 EN ISO 8257-2:2006.

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, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 24026-2:2020 has been approved by CEN as EN ISO 24026-2:2020 without any

modification.
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SIST EN ISO 24026-2:2020
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SIST EN ISO 24026-2:2020
INTERNATIONAL ISO
STANDARD 24026-2
First edition
2020-05
Plastics — Poly(methyl methacrylate)
(PMMA) moulding and extrusion
materials —
Part 2:
Preparation of test specimens and
determination of properties
Plastiques — Matériaux à base de poly(méthacrylate de méthyle)
(PMMA) pour moulage et extrusion —
Partie 2: Préparation des éprouvettes et détermination des propriétés
Reference number
ISO 24026-2:2020(E)
ISO 2020
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SIST EN ISO 24026-2:2020
ISO 24026-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 24026-2:2020
ISO 24026-2:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Preparation of test specimens ................................................................................................................................................................ 2

4.1 General ........................................................................................................................................................................................................... 2

4.2 Treatment of the material before moulding .................................................................................................................. 2

4.3 Moulding of specimens .................................................................................................................................................................... 3

4.3.1 General requirements .................................................................................................................................................. 3

4.3.2 Melt temperature .................. .................................................... ....................................................................................... 3

4.3.3 Mould temperature ........................................................................................................................................................ 4

4.3.4 Average melt velocity ................................................................................................................................................... 4

4.3.5 Hold pressure ..................................................................................................................................................................... 5

4.3.6 Cooling time ......................................................................................................................................................................... 5

5 Conditioning of test specimens ............................................................................................................................................................. 5

6 Determination of properties .................................................................................................................................................................... 5

© ISO 2020 – All rights reserved iii
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SIST EN ISO 24026-2:2020
ISO 24026-2:2020(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 of the voluntary nature of standards, 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 www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9,

Thermoplastic materials, in collaboration with the European Committee for Standardization (CEN)

Technical Committee CEN/TC 249, Plastics, in accordance with the Agreement on technical cooperation

between ISO and CEN (Vienna Agreement).

This first edition of ISO 24026-2 cancels and replaces ISO 8257-2:2001, which has been technically

revised.
The main changes compared to the previous edition are as follows:
— the normative references have been updated;
— Clause 3 has been added;
— the contents of Table 3 and Table 4 have been updated.
A list of all parts in the ISO 24026 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
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SIST EN ISO 24026-2:2020
INTERNATIONAL STANDARD ISO 24026-2:2020(E)
Plastics — Poly(methyl methacrylate) (PMMA) moulding
and extrusion
...

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