SIST EN ISO 7214:2012

SLOVENSKI STANDARD
SIST EN ISO 7214:2012
01-september-2012
1DGRPHãþD
SIST EN ISO 7214:2007
Penjeni polimerni materiali - Polietilen - Preskusne metode (ISO 7214:2012)
Cellular plastics - Polyethylene - Methods of test (ISO 7214:2012)
Schaumstoffe aus Polyethylen - Prüfverfahren (ISO 7214:2012)
Plastiques alvéolaires - Polyéthylène - Méthodes d'essai (ISO 7214:2012)
Ta slovenski standard je istoveten z: EN ISO 7214:2012
ICS:
83.100 Penjeni polimeri Cellular materials
SIST EN ISO 7214:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7214:2012

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SIST EN ISO 7214:2012


EUROPEAN STANDARD
EN ISO 7214

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2012
ICS 83.100 Supersedes EN ISO 7214:2007
English Version
Cellular plastics - Polyethylene - Methods of test (ISO
7214:2012)
Plastiques alvéolaires - Polyéthylène - Méthodes d'essai Schaumstoffe aus Polyethylen - Prüfverfahren (ISO
(ISO 7214:2012) 7214:2012)
This European Standard was approved by CEN on 31 March 2012.

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, Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7214:2012: E
worldwide for CEN national Members.

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SIST EN ISO 7214:2012
EN ISO 7214:2012 (E)
Contents Page
Foreword .3

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SIST EN ISO 7214:2012
EN ISO 7214:2012 (E)
Foreword
This document (EN ISO 7214:2012) 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 October 2012, and conflicting national standards shall be withdrawn at
the latest by October 2012.
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 7214:2007.
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, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 7214:2012 has been approved by CEN as a EN ISO 7214:2012 without any modification.

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SIST EN ISO 7214:2012

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SIST EN ISO 7214:2012
INTERNATIONAL ISO
STANDARD 7214
Fourth edition
2012-04-01
Cellular plastics — Polyethylene —
Methods of test
Plastiques alvéolaires — Polyéthylène — Méthodes d’essai
Reference number
ISO 7214:2012(E)
©
ISO 2012

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SIST EN ISO 7214:2012
ISO 7214:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
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 either ISO at the address below or ISO’s
member 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
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 7214:2012
ISO 7214:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Test specimens . 2
4 Conditioning . 2
5 Atmosphere during test . 2
6 Measurement of dimensions . 2
7 Mandatory tests . 3
7.1 Apparent density . 3
7.2 Compressive stress . 3
7.3 Compression set . 3
7.4 Tensile strength and elongation . 3
7.5 Dimensional stability at elevated temperature . 3
7.6 Water absorption . 4
7.7 Burning characteristics . 5
8 Optional tests . 5
8.1 Dynamic cushioning performance . 5
8.2 Compressive creep . 5
8.3 Thermal conductivity . 6
8.4 Water-vapour transmission . 6
8.5 Dynamic stiffness . 6
8.6 Cell count . 6
8.7 Tear strength . 6
8.8 Permanent set after repeated compression . 7
9 Test report . 8
Annex A (normative) Cell count procedure .10
© ISO 2012 – All rights reserved iii

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SIST EN ISO 7214:2012
ISO 7214:2012(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 7214 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 10, Cellular plastics.
This fourth edition cancels and replaces the third edition (ISO 7214:2007). Figure 1, which was dimensionally
incorrect in the previous edition, has been replaced by Figure 2 from ISO 34-1:2010.
iv © ISO 2012 – All rights reserved

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SIST EN ISO 7214:2012
INTERNATIONAL STANDARD ISO 7214:2012(E)
Cellular plastics — Polyethylene — Methods of test
1 Scope
1.1 This International Standard specifies methods for testing flexible and semi-rigid cellular plastics made from
polyethylene. Cellular plastics containing copolymers of ethylene or blends of polymers with polyethylene may
also be tested by the procedures of this International Standard provided these materials have characteristics
similar to polyethylene as described in ISO 1872-1, or copolymers of ethylene as described in ISO 4613-1.
1.2 Mandatory tests suitable for characterization of cellular polyethylene, regardless of end use, are described in
Clause 7. Optional tests for the determination of properties that are relevant to certain uses are described in Clause 8.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 845:2006, Cellular plastics and rubbers — Determination of apparent density
ISO 1663, Rigid cellular plastics — Determination of water vapour transmission properties
ISO 1798, Flexible cellular polymeric materials — Determination of tensile strength and elongation at break
ISO 1856, Flexible cellular polymeric materials — Determination of compression set
ISO 1872-1, Plastics — Polyethylene (PE) moulding and extrusion materials — Part 1: Designation system and
basis for specifications
ISO 1923, Cellular plastics and rubbers — Determination of linear dimensions
ISO 2796, Cellular plastics, rigid — Test for dimensional stability
ISO 2896, Rigid cellular plastics — Determination of water absorption
ISO 3386-1, Polymeric materials, cellular flexible — Determination of stress-strain characteristics in
compression — Part 1: Low-density materials
ISO 3582, Flexible cellular polymeric materials — Laboratory assessment of horizontal burning characteristics
of small specimens subjected to a small flame
ISO 4613-1, Plastics — Ethylene/vinyl acetate (E/VAC) moulding and extrusion materials — Part 1: Designation
and specification
ISO 4651, Cellular rubbers and plastics — Determination of dynamic cushioning performance
ISO 7850:1986, Cellular plastics, rigid — Determination of compressive creep
ISO 8301, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Heat flow meter apparatus
ISO 8302, Thermal insulation — Determination of steady-state thermal resistance and related properties —
Guarded hot plate apparatus
ISO 8497, Thermal insulation — Determination of steady-state thermal transmission properties of thermal
insulation for circular pipes
© ISO 2012 – All rights reserved 1

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SIST EN ISO 7214:2012
ISO 7214:2012(E)
ISO 9772, Cellular plastics — Determination of horizontal burning characteristics of small specimens subjected
to a small flame
3 Test specimens
The specimens shall be cut so that the edges are clean and the sides are planar and normal to the surface. The
specimens shall be cut from the sample so that a representative value is determined for each physical property
investigated. With anisotropic samples, take specimens in the appropriate direction.
Clauses 7 and 8 outline the requirements for the number of specimens, their shape and their dimensions.
Unless otherwise required by a specific test method, the surfaces of the specimens shall be the same as the
surface of the material in normal use.
4 Conditioning
Unless otherwise specified in Clause 7 or 8, specimens shall be conditioned for a minimum of 24 h at
(23 ± 2) °C and (50 ± 10) % relative humidity,
or
+20
(23 ± 5) °C and 50 % relative humidity,
−10
or
+20
(27 ± 5) °C and 65 % relative humidity.
−10
NOTE Some materials may require up to 30 days ageing after manufacture for the physical properties to stab
...