EN ISO 7792-2:2004

SLOVENSKI STANDARD
01-oktober-2004
Polimerni materiali - Materiali za oblikovanje in ekstrudiranje iz plastomernih
poliestrov – 2. del: Priprava preskušancev in ugotavljanje lastnosti (ISO 7792-
2:1997)
Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 2:
Preparation of test specimens and determination of properties (ISO 7792-2:1997)
Kunststoffe - Thermoplastische Polyester (TP)-Formmassen - Teil 2: Herstellung von
Probekörpern und Bestimmung von Eigenschaften (ISO 7792-2:1997)
Plastiques - Polyesters thermoplastiques (TP) pour moulage et extrusion - Partie 2:
Préparation des éprouvettes et détermination des propriétés (ISO 7792-2:1997)
Ta slovenski standard je istoveten z: EN ISO 7792-2:2004
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 7792-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2004
ICS 83.080.20
English version
Plastics - Thermoplastic polyester (TP) moulding and extrusion
materials - Part 2: Preparation of test specimens and
determination of properties (ISO 7792-2:1997)
Plastiques - Polyesters thermoplastiques (TP) pour
moulage et extrusion - Partie 2: Préparation des
éprouvettes et détermination des propriétés (ISO 7792-
2:1997)
This European Standard was approved by CEN on 21 June 2004.
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, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7792-2:2004: E
worldwide for CEN national Members.

Foreword
The text of ISO 7792-2:1997 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
7792-2:2004 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 January 2005, and conflicting national
standards shall be withdrawn at the latest by January 2005.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 7792-2:1997 has been approved by CEN as EN ISO 7792-2:2004 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).

Annex ZA
(normative)
Normative references to international publications
with their relevant European publications

This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).

NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.

Publication Year Title EN Year

EN ISO 62 1999
ISO 62 1999 Plastics - Determination of water
absorption
ISO 75-1 1993 Plastics - Determination of EN ISO 75-1 1996
temperature of deflection under load
- Part 1: General test method
ISO 75-2 1993 Plastics - Determination of EN ISO 75-2 1996
temperature of deflection under load
- Part 2: Plastics and ebonite

ISO 291 1997 Plastics - Standard atmospheres for EN ISO 291 1997
conditioning and testing
ISO 294-1 1996 Plastics - Injection moulding of test EN ISO 294-1 1998
specimens of thermoplastic
materials - Part 1: General
principles, and moulding of
multipurpose and bar test
specimens
ISO 306 1994 Plastics - Thermoplastic materials - ISO 306 1996
Determination of Vicat softening
temperature (VST)
ISO 527-1 1993 Plastics - Determination of tensile EN ISO 527-1 1996
properties - Part 1: General
principles
ISO 527-2 1993 Plastics - Determination of tensile EN ISO 527-2 1996
properties - Part 2: Test conditions
for moulding and extrusion plastics

ISO 2818 1994 Plastics - Preparation of test EN ISO 2818 1996
specimens by machining
ISO 3146 2000 Plastics - Determination of melting EN ISO 3146 2000
behaviour (melting temperature or
melting range) of semi-crystalline
polymers by capillary tube and
polarizing-microscope methods
ISO 4589-1 1996 Plastics - Determination of burning ISO 4589-1 1999
behaviour by oxygen index - Part 1:
Guidance
ISO 4589-2 1996 Plastics - Determination of burning ISO 4589-2 1999
behaviour by oxygen index - Part 2:
Ambient-temperature test
ISO 8256 1990 Plastics - Determination of tensile- EN ISO 8256 1996
impact strength
INTERNATIONAL ISO
STANDARD 7792-2
Second edition
1997-12-01
Plastics — Thermoplastic polyester (TP)
moulding and extrusion materials —
Part 2:
Preparation of test specimens and
determination of properties
Plastiques — Polyesters thermoplastiques (TP) pour moulage et extrusion —
Partie 2: Préparation des éprouvettes et détermination des propriétés
A
Reference number
ISO 7792-2:1997(E)
ISO 7792-2:1997(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.
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.
International Standard ISO 7792-2 was prepared by Technical Committee
ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.
This second edition cancels and replaces the first edition
(ISO 7792-2:1988) and includes the following changes:
— The scope has been expanded to include all thermoplastic polyester
(TP) homopolymers and copolymers.
— The text has been brought into accordance with the standard SC 9
frame text.
— PCT and PEN have been added, and moulding conditions have been
listed in a new table.
— The table of standard properties and test conditions has been revised
in accordance with ISO 10350.
ISO 7792 consists of the following parts, under the general title Plastics —
Thermoplastic polyester (TP) moulding and extrusion materials:
— Part 1: Designation system and basis for specifications
— Part 2: Preparation of test specimens and determination of properties
©  ISO 1997
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet central@iso.ch
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Printed in Switzerland
ii
©
INTERNATIONAL STANDARD  ISO ISO 7792-2:1997(E)
Plastics — Thermoplastic polyester (TP) moulding and extrusion
materials —
Part 2:
Preparation of test specimens and determination of properties
1  Scope
This part of ISO 7792 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 here.
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. Other test methods in wide use for
or of particular significance to these moulding and extrusion materials are also included in this part of ISO 7792, as
are the designatory properties specified in part 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 followi
...