EN ISO 6721-1:2011

Plastics - Determination of dynamic mechanical properties - Part 1: General principles (ISO 6721-1:2011)

The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties of rigid plastics within the region of linear viscoelastic behaviour. ISO 6721-1:2011 is an introductory section which includes the definitions and all aspects that are common to the individual test methods described in the subsequent parts.
Different deformation modes may produce results that are not directly comparable. For example, tensile vibration results in a stress which is uniform across the whole thickness of the specimen, whereas flexural measurements are influenced preferentially by the properties of the surface regions of the specimen.
Values derived from flexural-test data will be comparable to those derived from tensile-test data only at strain levels where the stress-strain relationship is linear and for specimens which have a homogeneous structure.

Kunststoffe - Bestimmung dynamisch-mechanischer Eigenschaften - Teil 1: Allgemeine Grundlagen (ISO 6721-1:2011)

Die verschiedenen Teile von ISO 6721 legen Verfahren zur Bestimmung der dynamisch-mechanischen
Eigenschaften von steifen Kunststoffen im Bereich des linear-viskoelastischen Verhaltens fest. Dieser Teil von
ISO 6721 ist ein Einführungsteil, der die Definitionen und alle Gesichtspunkte enthält, die für die einzelnen, in
den folgenden Teilen beschriebenen Prüfverfahren gültig sind.
Unterschiedliche Deformationsarten können Ergebnisse hervorrufen, die nicht direkt vergleichbar sind. Zum
Beispiel ergeben Zugschwingungen Spannungen, die über die gesamte Dicke des Probekörpers gleichförmig
sind, während Biege-Messungen bevorzugt durch die Eigenschaften von Oberflächen-Gebieten des Probekörpers
beeinflusst sind.
Eigenschaftswerte aus Biegeprüfungen sind nur mit solchen aus Zugprüfungen vergleichbar in Spannungsbereichen,
in denen die Spannungs-Dehnungs-Beziehung linear ist, und für Probekörper mit homogener
Struktur.

Plastiques - Détermination des propriétés mécaniques dynamiques - Partie 1: Principes généraux (ISO 6721-1:2011)

Les différentes parties de l'ISO 6721 spécifient des méthodes pour la détermination des propriétés mécaniques dynamiques de plastiques rigides dans le domaine de comportement viscoélastique linéaire. L'ISO 6721-1:2011 établit des principes généraux incluant les définitions et tous les aspects communs à toutes les méthodes individuelles, décrites dans les parties subséquentes.
Les différents modes de déformation peuvent produire des résultats qui ne sont pas directement comparables. Par exemple, la vibration en traction conduit à une contrainte uniforme dans toute l'épaisseur de l'éprouvette, alors que les mesurages en flexion sont influencés préférentiellement par les propriétés des couches superficielles de l'éprouvette.
Les valeurs découlant des données de l'essai de flexion seront comparables à celles découlant des données de l'essai de traction seulement aux niveaux de déformation pour lesquels la relation contrainte-déformation est linéaire, et pour des éprouvettes de structure homogène.

Polimerni materiali - Ugotavljanje dinamičnih mehanskih lastnosti - 1. del: Splošna načela (ISO 6721-1:2011)

Različni deli ISO 6721 določajo metode za ugotavljanje dinamičnih mehanskih lastnosti togih polimernih materialov v okviru linearnega viskoelastičnega obnašanja. Ta del ISO 6721 je uvodni del, ki vključuje definicije in vse vidike, ki so skupni posameznim preskusnim metodam, opisanim v naslednjih delih. Različni načini deformacije lahko privedejo do rezultatov, ki niso neposredno primerljivi. Natezna vibracija ima na primer za posledico napetost, ki je enakomerna po vsej debelini vzorca, na upogibne meritve pa vplivajo lastnosti površinskih predelov vzorca. Vrednosti, dobljene iz podatkov upogibnega preskusa, so primerljive z vrednostmi, dobljenimi iz podatkov nateznega preskusa, le pri ravneh deformacije, pri katerih je razmerje med napetostjo in deformacijo linearno, in pri vzorcih s homogeno strukturo.

General Information

• Status: Withdrawn
• Publication Date: 14-May-2011
• Withdrawal Date: 28-May-2019
• ICS: 83.080.01 - Plastics in general
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249 - Plastics
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 29-May-2019
• Ref Project: SIST EN ISO 6721-1:2012 - Plastics - Determination of dynamic mechanical properties - Part 1: General principles (ISO 6721-1:2011)

Relations

• Replaces: EN ISO 6721-1:2002 - Plastics - Determination of dynamic mechanical properties - Part 1: General principles (ISO 6721-1:2001)
• Effective Date: 21-May-2011
• Replaced By: EN ISO 6721-1:2019 - Plastics - Determination of dynamic mechanical properties - Part 1: General principles (ISO 6721-1:2019)
• Effective Date: 05-Jun-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 6721-1:2012
01-januar-2012
1DGRPHãþD
SIST EN ISO 6721-1:2003
SIST EN ISO 6721-1:2003/kprA1:2010
3ROLPHUQLPDWHULDOL8JRWDYOMDQMHGLQDPLþQLKPHKDQVNLKODVWQRVWLGHO6SORãQD
QDþHOD,62
Plastics - Determination of dynamic mechanical properties - Part 1: General principles
(ISO 6721-1:2011)
Kunststoffe - Bestimmung dynamisch-mechanischer Eigenschaften - Teil 1: Allgemeine
Grundlagen (ISO 6721-1:2011)
Plastiques - Détermination des propriétés mécaniques dynamiques - Partie 1: Principes
généraux (ISO 6721-1:2011)
Ta slovenski standard je istoveten z: EN ISO 6721-1:2011
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 6721-1:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 6721-1:2012

---------------------- Page: 2 ----------------------

SIST EN ISO 6721-1:2012


EUROPEAN STANDARD
EN ISO 6721-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2011
ICS 83.080.01 Supersedes EN ISO 6721-1:2002
English Version
Plastics - Determination of dynamic mechanical properties - Part
1: General principles (ISO 6721-1:2011)
Plastiques - Détermination des propriétés mécaniques Kunststoffe - Bestimmung dynamisch-mechanischer
dynamiques - Partie 1: Principes généraux (ISO 6721- Eigenschaften - Teil 1: Allgemeine Grundlagen (ISO 6721-
1:2011) 1:2011)
This European Standard was approved by CEN on 14 May 2011.

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





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6721-1:2011: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 6721-1:2012
EN ISO 6721-1:2011 (E)
Contents Page
Foreword .3

2

---------------------- Page: 4 ----------------------

SIST EN ISO 6721-1:2012
EN ISO 6721-1:2011 (E)
Foreword
This document (EN ISO 6721-1:2011) 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 November 2011, and conflicting national standards shall be withdrawn
at the latest by November 2011.
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.
This document supersedes EN ISO 6721-1:2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, 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 the United Kingdom.
Endorsement notice
The text of ISO 6721-1:2011 has been approved by CEN as a EN ISO 6721-1:2011 without any modification.

3

---------------------- Page: 5 ----------------------

SIST EN ISO 6721-1:2012

---------------------- Page: 6 ----------------------

SIST EN ISO 6721-1:2012

INTERNATIONAL ISO
STANDARD 6721-1
Third edition
2011-05-15


Plastics — Determination of dynamic
mechanical properties —
Part 1:
General principles
Plastiques — Détermination des
...