SIST EN ISO 3672-2:2002

SLOVENSKI STANDARD
01-februar-2002
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Plastics - Unsaturated-polyester resins (UP-R) - Part 2: Preparation of test specimens
and determination of properties (ISO 3672-2:2000)
Kunststoffe - Ungesättigte Polyesterharze (UP-R) - Teil 2: Herstellung von Probekörpern
und Bestimmung von Eigenschaften (ISO 3672-2:2000)
Plastiques - Résines de polyesters non saturés (UP-R) - Partie 2: Préparation des
éprouvettes et détermination des propriétés (ISO 3672-2:2000)
Ta slovenski standard je istoveten z: EN ISO 3672-2:2001
ICS:
83.080.10 Duromeri Thermosetting materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 3672-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2001
ICS 83.080.10
English version
Plastics - Unsaturated-polyester resins (UP-R) - Part 2:
Preparation of test specimens and determination of properties
(ISO 3672-2:2000)
Plastiques - Résines de polyesters non saturés (UP-R) - Kunststoffe - Ungesättigte Polyesterharze (UP-R) - Teil 2:
Partie 2: Préparation des éprouvettes et détermination des Herstellung von Probekörpern und Bestimmung von
propriétés (ISO 3672-2:2000) Eigenschaften (ISO 3672-2:2000)
This European Standard was approved by CEN on 17 June 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3672-2:2001 E
worldwide for CEN national Members.

CORRECTED  2002-04-17
Foreword
The text of the International Standard from Technical Committee ISO/TC 61 "Plastics" of the
International Organization for Standardization (ISO) has been taken over as a European
Standard 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 February 2002, and conflicting national
standards shall be withdrawn at the latest by February 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of the International Standard ISO 3672-2:2000 has been approved by CEN as a
European Standard 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
ISO 62 1999 Plastics - Determination of water absorption EN ISO 62 1999
ISO 75-2 1993 Plastics - Determination of temperature of EN ISO 75-2 1996
deflection under load - Part 2: Plastics and
ebonite
ISO 178 1993 Plastics - Determination of flexural EN ISO 178 1996
properties
ISO 179-1 2000 Plastics — Determination of Charpy impact EN ISO 179-1 2000
properties — Part 1: Non-instrumented
impact test
ISO 291 1997 Plastics - Standard atmospheres for EN ISO 291 1997
conditioning and testing
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 604 1993 Plastics - Determination of compressive EN ISO 604 1996
properties
ISO 1675 1985 Plastics - Liquid resins - Determination of EN ISO 1675 1998
density by the pyknometer method
ISO 2114 2000 Plastics (polyester resins) and paints and EN ISO 2114 2000
varnishes (binders) - Determination of
partial acid value and total acid value
ISO 2535 1997 Plastics - Unsaturated polyester resins - EN ISO 2535 1998
Measurement of gel time at 25 °C
ISO 2554 1997 Plastics - Unsaturated polyester resins - EN ISO 2554 1998
Determination of hydroxyl value
ISO 2719 1988 Petroleum products and lubricants - EN 22719 1993
Determination of flash point - Pensky-
Martens closed cup method
ISO 2818 1994 Plastics - Preparation of test specimens EN ISO 2818 1994
by machining
ISO 3167 1993 Plastics - Multipurpose-test specimens EN ISO 3167 1996
ISO 3219 1993 Plastics - Polymers/resins in the liquid EN ISO 3219 1994
state or as emulsions or dispersions -
Determination of viscosity using a
rotational viscometer with defined shear
rate
ISO 3521 1997 Plastics - Unsaturated polyester and EN ISO 3521 1999
epoxy resins - Determination of overall
volume shrinkage
ISO 4589-2 1996 Plastics - Determination of burning EN ISO 4589-2 1999
behaviour by oxygen index - Part 2:
Ambient-temperature test
ISO 4615 1979 Plastics - Unsaturated polyesters and EN ISO 4615 1999
epoxide resins - Determination of total
chlorine content
ISO 6603-2 2000 Plastics - Determination of puncture EN ISO 6603-2 2000
impact behaviour of rigid plastics - Part
2: Instrumented puncture test
ISO 8256 1990 Plastics - Determination of tensile- EN ISO 8256 1996
impact strength
ISO 10350-1 1998 Plastics - Acquisition and presentation of EN ISO 10350-1 2000
comparable single-point data - Part 1:
Moulding materials
INTERNATIONAL ISO
STANDARD 3672-2
First edition
2000-07-15
Plastics — Unsaturated-polyester resins
(UP-R) —
Part 2:
Preparation of test specimens
and determination of properties
Plastiques — Résines de polyesters non saturés (UP-R) —
Partie 2: Préparation des éprouvettes et détermination des propriétés
Reference number
ISO 3672-2:2000(E)
©
ISO 2000
ISO 3672-2:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 3672-2:2000(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Preparation of test specimens .3
3.1 General.3
3.2 Pretreatment of materials .3
3.3 Preparation of the sheets.4
3.4 Cutting out test specimens.6
4 Conditioning of test specimens .6
5 Determination of properties.6
ISO 3672-2:2000(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.
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 3672 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 3672-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee
SC 12, Thermosetting materials.
ISO 3672 consists of the following parts, under the general title Plastics — Unsaturated-polyester resins (UP-R):
� Part 1: Designation system
� Part 2: Preparation of test specimens and determination of properties
iv © ISO 2000 – All rights reserved

ISO 3672-2:2000(E)
Introduction
The purpose of this part of ISO 3672 is to designate procedures for the determination of intrinsic properties of
unsaturated-polyester (UP) resins. It specifies procedures and conditions for the preparation of test specimens of
unsaturated-polyester resins in a specified state, and methods for measuring their properties. Those properties and
test methods which are suitable and necessary for characterizing unsaturated-polyester resins are listed. Because
of the specificity of thermosetting resins like unsaturated-polyester resins, contrary to other plastic products, a
distinction is made between the presentation of the properties before crosslinking (characteristics which are useful
for processing) and after crosslinking (intrinsic characteristics).
INTERNATIONAL STANDARD ISO 3672-2:2000(E)
Plastics — Unsaturated-polyester resins (UP-R) —
Part 2:
Preparation of test specimens and determination of properties
WARNING — Persons using this part of ISO 3672 should be familiar with normal laboratory practice. This
part of ISO 3672 does not purport to address all of the safety problems, if any, associated with its use. It is
the responsibility of the user to establish appropriate safety and health practices and to ensure compliance
with any national regulatory conditions.
1 Scope
This part of ISO 3672 specifies the methods of preparation of test specimens and the test methods to be used in
determining the properties of unsaturated-polyester resins. Requirements for handling test material and for
conditioning both the test material before moulding and the specimens before testing are given here.
The properties of crosslinked unsaturated-polyester resins have been selected from the general test methods in
ISO 10350-1. Other test methods in wide use for, or of particular significance to, unsaturated-polyester resins
(particularly properties useful for the processing of non-crosslinked resins) are also included in this part of
ISO 3672.
In order to obtain reproducible and comparable test results, it is necessary to use the test methods, sample
preparation and conditioning procedures, and specimen dimensions specified herein. Values determined will not
necessarily be identical to those obtained using specimens of different dimensions or prepared using different
procedures.
Other standards exist concerning the determination of properties and preparation of test specimens for
unsaturated-polyester-based products, to which reference will be made, if required.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 3672. For dated references, subsequent amendments to, or revisions of, any of these publications
do not apply. However, parties to agreements based on this part of ISO 3672 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.
ISO 62:1999, Plastics — Determination of water absorption.
ISO 75-2:1993, Plastics — Determination of temperature of deflection under load — Part 2: Plastics an
...