EN ISO 20753:2014
(Main)Plastics - Test specimens (ISO 20753:2008)
Plastics - Test specimens (ISO 20753:2008)
ISO 20753:2008 specifies dimensional requirements relating to test specimens prepared from plastics materials intended for processing by moulding as well as to test specimens prepared by machining from sheets or shaped articles. It gives, in one document, the designations and dimensions of test specimens used for the acquisition of comparable data and also other frequently used specimens.
Kunststoffe - Probekörper (ISO 20753:2008)
1.1 Die vorliegende Internationale Norm legt die maßlichen Anforderungen sowohl an Probekörper aus Kunststoffmassen, die zur Bearbeitung durch Formgebung bestimmt sind, als auch an Probekörper fest, die durch die Bearbeitung von Platten oder Formkörpern hergestellt sind. Die Norm enthält in einem Dokument die Bezeichnungen und Maße der zur Erfassung vergleichbarer Daten verwendeten Probekörper und auch anderer häufig verwendeter Probekörper.
Die folgenden Probekörpertypen sind festgelegt:
a) Probekörper Typ A1 und Typ A2 (1 Spritzguss, 2 durch mechanische Bearbeitung aus einer Platte oder aus einem Formkörper)
Dabei handelt es sich um Zugprobekörper, aus denen durch einfache mechanische Bearbeitung Probekörper für eine Vielzahl von anderen Prüfungen entnommen werden können (siehe Anhang A).
Der Probekörper Typ A1 entspricht einem Vielzweckprobekörper Typ A nach ISO 3167:2002. Ein Vielzweckprobekörper hat den wesentlichen Vorteil, dass alle Prüflaboratorien auf der Basis vergleichbarer Formteile alle in Anhang A genannten Prüfverfahren durchführen können. Folglich stehen die gemessenen Eigenschaften in Beziehung zueinander, da sie alle unter Verwendung auf die in gleicher Weise hergestellten ähnlichen Probekörpern bestimmt werden. Anders gesagt, kann erwartet werden, dass die Prüfergebnisse für einen gegebenen Satz von Probekörpern durch unbeabsichtigte Unterschiede der Formbedingungen nicht signifikant voneinander abweichen. Andererseits kann, falls gewünscht, der Einfluss der Formgebungsparameter und/oder der unterschiedlichen Zustände der Probekörper problemlos für alle gemessenen Eigenschaften festgestellt werden.
Ebenfalls beschrieben werden als Typ Axy bezeichnete verkleinerte Probekörper, wobei x die Nummer des Verfahrens der Probekörperherstellung (1 Spritzguss, 2 durch mechanische Bearbeitung aus einer Platte oder aus einem Formkörper) und y eine Nummer ist, die den Maßstabsfaktor (1:y) angibt. Diese können zum Beispiel verwendet werden, wenn Probekörper in ganzer Größe unzweckmäßig sind oder wenn das Probenmaterial nur in kleinen Mengen zur Verfügung steht.
b) Probekörper Typ B
Das sind Stabprobekörper, die direkt geformt oder aus dem Mittelteil von Probekörpern Typ A1 oder aus Platten oder Formkörpern mechanisch herausgearbeitet werden können.
c) Probekörper Typ C
Das sind kleine Zugprobekörper, die direkt geformt oder aus Platten (Probekörper Typ D), aus dem Mittelteil von Probekörpern Typ A1 oder aus Platten oder Formkörpern mechanisch herausgearbeitet werden können.
d) Probekörper Typ D1 und D2
Dabei handelt es sich um quadratische Tafeln mit einer Dicke von 1 mm oder 2 mm.
Sofern ein bestimmter Probekörpertyp in der vorliegenden Internationalen Norm nicht genannt ist, bedeutet das nicht, dass die Absicht besteht, den Probekörper von der Verwendung auszuschließen. Das Hinzufügen zusätzlicher Probekörpertypen ist in Zukunft möglich, sofern diese üblicherweise verwendet werden.
Plastiques - Éprouvettes (ISO 20753:2008)
L'ISO 20753:2008 fixe des spécifications relatives aux dimensions des éprouvettes préparées à partir de matières plastiques et destinées au traitement par moulage par injection ainsi que des éprouvettes préparées par usinage à partir de feuilles ou d'articles façonnés. Elle fournit, dans un seul document, les désignations et les dimensions des éprouvettes utilisées pour l'acquisition de données comparables ainsi que d'autres éprouvettes fréquemment utilisées.
Polimerni materiali - Preskušanci (ISO 20753:2008)
Ta mednarodni standard določa dimenzijske zahteve za preskušance, pripravljene iz polimernih materialov in namenjene za obdelavo z oblikovanjem, ter za preskušance, pripravljene s strojno obdelavo iz trakov ali oblikovanih izdelkov. V enem dokumentu podaja oznake in dimenzije za preskušance, uporabljene za pridobivanje primerljivih podatkov in za druge preskušance, ki se pogosto uporabljajo. Določene so naslednje vrste preskušancev: a) preskušanci vrste A1 in vrste A2 (1 – oblikovani z vbrizganjem, 2 – strojno obdelani iz trakov ali oblikovanih izdelkov). To so natezni preskušanci, iz katerih je mogoče s preprosto strojno obdelavo pridobiti preskušance za raznovrstne druge preskuse (glejte Dodatek A). Preskušanec vrste A1 ustreza večnamenskemu preskušancu vrste A iz standarda ISO 3167:2002. Glavna prednost večnamenskega preskušanca je, da omogoča izvedbo vseh preskusnih metod, omenjenih v Dodatku A, v vseh preskusnih laboratorijih na podlagi primerljivih oblikovancev. Posledično so merjene lastnosti skladne, saj se merijo z uporabo podobnih preskušancev, pripravljenih na enak način. Z drugimi besedami, mogoče je pričakovati, da se rezultati preskusa za podan nabor preskušancev ne bodo znatno razlikovali zaradi nenamerno drugačnih pogojev oblikovanja. Po drugi strani pa je mogoče po želji brez težav oceniti vpliv pogojev oblikovanja in/ali različnih stanj preskušancev za vse merjene lastnosti. Opisani so tudi preskušanci v pomanjšanjem merilu, označeni kot vrsta Axy, kjer je x številka, ki označuje način priprave preskušanca, (1 – oblikovani z vbrizganjem, 2 – strojno obdelani iz trakov ali oblikovanih izdelkov) in y številka, ki označuje faktor lestvice, (1:y). Te je mogoče uporabiti na primer, ko uporaba preskušancev polne velikosti ni priročna ali ko je preskusni material na voljo samo v majhnih količinah. b) Preskušanci vrste B. To so palični preskušanci, ki jih je mogoče neposredno oblikovati ali strojno obdelati iz osrednjega dela preskušancev vrste A1 oziroma iz trakov ali oblikovanih predmetov. c) Preskušanci vrste C. To so majhni natezni preskušanci, ki jih je mogoče neposredno oblikovati ali strojno obdelati, npr. iz plošč (preskušanci vrste D), iz osrednjega dela preskušancev vrste A1 oziroma iz trakov ali oblikovanih predmetov. d) Preskušanci vrste D1 in vrste D2. To so kvadratne plošče, debeline 1 mm in 2 mm.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2014
Polimerni materiali - Preskušanci (ISO 20753:2008)
Plastics - Test specimens (ISO 20753:2008)
Kunststoffe - Probekörper (ISO 20753:2008)
Plastiques - Éprouvettes (ISO 20753:2008)
Ta slovenski standard je istoveten z: EN ISO 20753:2014
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 20753
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 83.080.01
English Version
Plastics - Test specimens (ISO 20753:2008)
Plastiques - Éprouvettes (ISO 20753:2008) Kunststoffe - Probekörper (ISO 20753:2008)
This European Standard was approved by CEN on 1 May 2014.
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, 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
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20753:2014 E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 20753:2008 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 20753:2014 by
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 November 2014, and conflicting national standards shall be withdrawn
at the latest by November 2014.
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.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20753:2008 has been approved by CEN as EN ISO 20753:2014 without any modification.
INTERNATIONAL ISO
STANDARD 20753
First edition
2008-03-15
Plastics — Test specimens
Plastiques — Éprouvettes
Reference number
ISO 20753:2008(E)
©
ISO 2008
ISO 20753:2008(E)
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ii © ISO 2008 – All rights reserved
ISO 20753:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions. 2
4 Preparation of test specimens . 3
4.1 General. 3
4.2 Injection moulding of test specimens . 3
4.3 Compression moulding of test specimens . 4
4.4 Preparation of test specimens by machining . 4
5 Types of test specimen and their dimensions. 4
5.1 Types of test specimen . 4
5.2 Tensile test specimens with parallel-sided central section . 5
5.2.1 Multipurpose test specimens (type A1 and type A2) . 5
5.2.2 Reduced-scale test specimens . 6
5.3 Bar test specimens (type B) . 7
5.4 Small tensile specimens (type C). 8
5.5 Plate specimens (type D) . 9
6 Report on preparation of test specimens. 9
Annex A (informative) Recommended applications for multipurpose test specimens or parts
thereof. 11
Annex B (normative) Designation system for test specimens. 12
Bibliography . 14
ISO 20753:2008(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 2.
The main task of technical committees is to prepare International Standards. 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 document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 20753 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 2, Mechanical
properties.
iv © ISO 2008 – All rights reserved
ISO 20753:2008(E)
Introduction
Up to now, information on plastics test specimens has been specified in several different locations: in test
method standards (e.g. ISO 527-2), in ISO 3167 (for multipurpose test specimens) and in ISO 294-1,
ISO 294-2, ISO 294-3 and ISO 294-5 (for moulding conditions). The aim of this International Standard is to
give the designations and dimensions of test specimens used for the acquisition of comparable data, and also
other frequently used specimens, in one document for ease of reference. This will be followed by a revision of
the ISO 294 series, which will define only the injection-moulding conditions and will refer to this International
Standard for the dimensions of the specimens. Other International Standards that have hitherto used different
designations for the same specimen type will also be revised to bring the designations into line with those in
this International Standard.
INTERNATIONAL STANDARD ISO 20753:2008(E)
Plastics — Test specimens
1 Scope
1.1 This International Standard specifies dimensional requirements relating to test specimens prepared
from plastics materials intended for processing by moulding, as well as to test specimens prepared by
machining from sheets or shaped articles. It gives, in one document, the designations and dimensions of test
specimens used for the acquisition of comparable data and also other frequently used specimens.
The following types of test specimen are specified:
a) Type A1 and type A2 specimens (1 = injection moulded, 2 = machined from a sheet or shaped article)
These are tensile test specimens from which, with simple machining, specimens for a variety of other
tests can be taken (see Annex A).
The type A1 specimen corresponds to the ISO 3167:2002 type A multipurpose test specimen. The
principal advantage of a multipurpose test specimen is that it allows all the test methods mentioned in
Annex A to be carried out by all test laboratories on the basis of comparable mouldings. Consequently,
the properties measured are coherent as all are measured using similar specimens prepared in the same
way. In other words, it can be expected that test results for a given set of specimens will not vary
appreciably due to unintentionally different moulding conditions. On the other hand, if desired, the
influence of moulding conditions and/or different states of the specimens can be assessed without
difficulty for all of the properties measured.
Also described are reduced-scale test specimens designated type Axy, where x is the number indicating
the method of specimen preparation (1 = injection moulded, 2 = machined from a sheet or shaped article)
and y is a number indicating the scale factor (1:y). These can be used e.g. when full-sized test specimens
are not convenient or when sample material exists in small quantities only.
b) Type B specimens
These are bar specimens which can be directly moulded or can be machined from the central section of
type A1 specimens or from sheets or shaped articles.
c) Type C specimens
These are small tensile test specimens which can be directly moulded or machined, e.g. from plates
(Type D specimens), from the central section of type A1 specimens or from sheets or shaped articles.
d) Type D1 and type D2 specimens
These are square plates of thickness 1 mm and 2 mm, respectively.
If a particular type of test specimen is not mentioned in this International Standard, this does not mean that
there is any intention to exclude the use of the specimen. Additional specimen types may be added in
...
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