SIST EN ISO 8257-2:2006
(Main)Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 8257-2:2001)
Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 8257-2:2001)
This part of ISO 8257 specifies procedures for moulding test specimens of PMMA materials in a specified state, and methods for measuring their properties. Any property listed in this part of ISO 8257 and referred to in combination with ISO 8257-1 shall be determined by the method referred to in this part of ISO 8257. No values are quoted for these properties. Those required for the designation of PMMA materials for moulding and extrusion are given in ISO 8257-1. Other properties shall be determined by the appropriate methods referred to in this part of ISO 8257. The values determined in accordance with this part of ISO 8257 will not necessarily be identical to those obtained using specimens of different dimensions and/or prepared by different procedures. They may also be influenced by colorants and other additives. The values obtained for the properties of a moulding depend on the moulding compound, the shape of test specimen, the test method and the state of anisotropy. The last-mentioned depends on the gating and the moulding conditions, for example temperature, pressure or injection rate. Any subsequent treatment must also be considered, for example conditioning or annealing. The thermal history and the internal stresses of the specimens may strongly influence thermal and mechanical properties and resistance to environmental stress cracking, but exert less effect on the electrical properties, which mainly depend on the chemical composition of the moulding compound.
Kunststoffe - Polymethylmethacrylat (PMMA)-Formmassen - Teil 2: Herstellung von Probekörpern und Bestimmung der Eigenschaften (ISO 8257-2:2001)
1.1 Der vorliegende Teil von ISO 8257 legt Verfahren zur Herstellung von Probekörpern aus PMMA-Formmassen
in einem spezifizierten Zustand und zur Messung von deren Eigenschaften fest. Jede in diesem
Teil von ISO 8257 aufgeführte Eigenschaft, auf die im Zusammenhang mit ISO 8257-1 verwiesen wird, ist
nach dem in diesem Teil von ISO 8257 angegebenen Prüfverfahren zu bestimmen.
1.2 Für diese Eigenschaften sind keine Werte angegeben. Die für die Bezeichnung von PMMA-Formmassen
benötigten Eigenschaften sind in ISO 8257-1 angegeben. Sonstige Eigenschaften sind nach
dem betreffenden Verfahren zu bestimmen, auf das in diesem Teil von ISO 8257 verwiesen wird.
1.3 Die nach dem vorliegenden Teil von ISO 8257 bestimmten Werte müssen nicht notwendigerweise mit
denen identisch sein, die bei Anwendung von Probekörpern mit anderen Maßen und/oder solchen, die nach
unterschiedlichen Verfahren hergestellt wurden, erhalten werden. Die Eigenschaftswerte eines Probekörpers
hängen von der Formmasse, der Form des Probekörpers, dem Prüfverfahren und dem Anisotropiestadium ab.
Letzteres hängt von der Spritzdüse und den Spritzgießbedingungen ab, z. B. Temperatur, Druck oder
Einspritzgeschwindigkeit. Auch jede nachfolgende Behandlung, beispielsweise Konditionieren oder Tempern,
ist dabei zu berücksichtigen.
1.4 Die thermische Vorgeschichte und die inneren Spannungen der Probekörper können die thermischen
und mechanischen Eigenschaften und die umweltbedingte Spannungsrissbeständigkeit stark beeinflussen,
sie wirken sich jedoch weniger stark auf die elektrischen Eigenschaften, die im Wesentlichen von der
chemischen Zusammensetzung der Formmasse abhängen.
Plastiques - Poly(méthacrylate de méthyle) (PMMA) pour moulage et extrusion - Partie 2: Préparation des éprouvettes et détermination des propriétés (ISO 8257-2:2001)
Polimerni materiali - Materiali na osnovi polimetilmetakrilata (PMMA) za oblikovanje in ekstrudiranje – 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO 8257-2:2001)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 8257-2:2006
01-julij-2006
Polimerni materiali - Materiali na osnovi polimetilmetakrilata (PMMA) za
oblikovanje in ekstrudiranje – 2. del: Priprava preskušancev in ugotavljanje
lastnosti (ISO 8257-2:2001)
Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 2:
Preparation of test specimens and determination of properties (ISO 8257-2:2001)
Kunststoffe - Polymethylmethacrylat (PMMA)-Formmassen - Teil 2: Herstellung von
Probekörpern und Bestimmung der Eigenschaften (ISO 8257-2:2001)
Plastiques - Poly(méthacrylate de méthyle) (PMMA) pour moulage et extrusion - Partie 2:
Préparation des éprouvettes et détermination des propriétés (ISO 8257-2:2001)
Ta slovenski standard je istoveten z: EN ISO 8257-2:2006
ICS:
83.080.20
SIST EN ISO 8257-2:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN ISO 8257-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 83.080.20
English Version
Plastics - Poly(methyl methacrylate) (PMMA) moulding and
extrusion materials - Part 2: Preparation of test specimens and
determination of properties (ISO 8257-2:2001)
Plastiques - Poly(méthacrylate de méthyle) (PMMA) pour Kunststoffe - Polymethylmethacrylat (PMMA)-Formmassen
moulage et extrusion - Partie 2: Préparation des - Teil 2: Herstellung von Probekörpern und Bestimmung der
éprouvettes et détermination des propriétés (ISO 8257- Eigenschaften (ISO 8257-2:2001)
2:2001)
This European Standard was approved by CEN on 16 March 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8257-2:2006: E
worldwide for CEN national Members.
---------------------- Page: 2 ----------------------
EN ISO 8257-2:2006 (E)
Foreword
The text of ISO 8257-2:2001 has been prepared by Technical Committee ISO/TC 61 "Plastics”
of the International Organization for Standardization (ISO) and has been taken over as EN ISO
8257-2:2006 by Technical Committee CEN/TC 249 "Plastics", the secretariat of which is held by
IBN.
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 October 2006, and conflicting national
standards shall be withdrawn at the latest by October 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,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 8257-2:2001 has been approved by CEN as EN ISO 8257-2:2006 without any
modifications.
2
---------------------- Page: 3 ----------------------
INTERNATIONAL ISO
STANDARD 8257-2
Second edition
2001-12-15
Corrected version
2003-11-01
Plastics — Poly(methyl methacrylate)
(PMMA) moulding and extrusion
materials —
Part 2:
Preparation of test specimens and
determination of properties
Plastiques — Poly(méthacrylate de méthyle) (PMMA) pour moulage et
extrusion —
Partie 2: Préparation des éprouvettes et détermination des propriétés
Reference number
ISO 8257-2:2001(E)
© ISO 2001
---------------------- Page: 4 ----------------------
ISO 8257-2:2001(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be
edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file,
parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2001
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec-
tronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's mem-
ber body in the country of the requester.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Printed in Switzerland
©
ii ISO 2001 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 8257-2:2001(E)
Contents Page
1 Scope . 1
2 Conformance . 1
3 Normative references . 1
4 Preparation of test specimens . 2
5 Conditioning . 4
6 Determination of properties . 5
©
ISO 2001 – All rights reserved iii
---------------------- Page: 6 ----------------------
ISO 8257-2:2001(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 com-
mittees. 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 liai-
son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this part of ISO 8257 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 8257-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9,
Thermoplastic materials.
This second edition cancels and replaces the first edition (ISO 8257-2:1990), which has been technically revised.
ISO 8257 consists of the following parts, under the general title Plastics — Poly(methyl methacrylate) (PMMA)
moulding and extrusion materials:
— Part 1: Designation system and basis for specifications
— Part 2: Preparation of test specimens and determination of properties
In this corrected version of ISO 8257-2:2001, Table 3 has been amended to remove the meaningless “less than” ()<
signs in the dimensions of the specimens for Charpy unnotched impact strength, Charpy notched impact strength
and temperature of deflection under load (sixth, seventh and eighth properties in table).
©
iv ISO 2001 – All rights reserved
---------------------- Page: 7 ----------------------
INTERNATIONAL STANDARD ISO 8257-2:2001(E)
Plastics — Poly(methyl methacrylate) (PMMA) moulding and
extrusion materials —
Part 2:
Preparation of test specimens and determination of properties
1 Scope
1.1 This part of ISO 8257 specifies procedures for moulding test specimens of PMMA materials in a specified state,
and methods for measuring their properties. Any property listed in this part of ISO 8257 and referred to in combina-
tion with ISO 8257-1 shall be determined by the method referred to in this part of ISO 8257.
1.2 No values are quoted for these properties. Those required for the designation of PMMA materials for moulding
and extrusion are given in ISO 8257-1. Other properties shall be determined by the appropriate methods referred to
in this part of ISO 8257.
1.3 The values determined in accordance with this part of ISO 8257 will not necessarily be identical to those ob-
tained using specimens of different dimensions and/or prepared by different procedures. They may also be influ-
enced by colorants and other additives. The values obtained for the properties of a moulding depend on the moulding
compound, the shape of test specimen, the test method and the state of anisotropy. The last-mentioned depends on
the gating and the moulding conditions, for example temperature, pressure or injection rate. Any subsequent treat-
ment must also be considered, for example conditioning or annealing.
1.4 The thermal history and the internal stresses of the specimens may strongly influence thermal and mechanical
properties and resistance to environmental stress cracking, but exert less effect on the electrical properties, which
mainly depend on the chemical composition of the mou
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.