Cellular plastics - Polyethylene - Methods of test (ISO 7214:2012)

ISO 7214:2012 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.
Mandatory tests suitable for characterization of cellular polyethylene, regardless of end use, and optional tests for the determination of properties that are relevant to certain uses are described.

Schaumstoffe aus Polyethylen - Prüfverfahren (ISO 7214:2012)

1.1   Diese Internationale Norm legt Prüfverfahren für weich-elastische und halbharte Schaumstoffe aus Polyethylen fest. Schaumstoffe, die Ethylen-Copolymere oder Mischungen aus Polymeren mit Polyethylen enthalten, dürfen ebenso nach den Verfahren dieser Internationalen Norm geprüft werden, vorausgesetzt, diese Materialien haben ähnliche Eigenschaften wie Polyethylen nach ISO 1872 1 oder Ethylen-Copolymere nach ISO 4613 1.
1.2   Im Abschnitt 7 sind obligatorische Prüfverfahren festgelegt, die für die Charakterisierung der Polyethylenschaumstoffe geeignet sind, ohne die Anwendung zu berücksichtigen. Im Abschnitt 8 werden die wahlfreien Prüfverfahren zur Bestimmung von Eigenschaften, die sich auf bestimmte Einsatzgebiete beziehen, beschrieben.

Plastiques alvéolaires - Polyéthylène - Méthodes d'essai (ISO 7214:2012)

Penjeni polimerni materiali - Polietilen - Preskusne metode (ISO 7214:2012)

Ta mednarodni standard določa metode za preskušanje prožnih in poltrdih penjenih polimernih materialov iz polietilena. S postopki iz tega mednarodnega standarda se lahko preskušajo tudi penjeni polimerni materiali, ki vsebujejo kopolimere etilena ali mešanice polimerov s polietilenom, če imajo ti materiali značilnosti, podobne polietilenu, iz standarda ISO 1872-1, ali značilnosti, podobne kopolimerom etilena, iz standarda ISO 4613-1. Obvezni preskusi, ki so primerni za ugotavljanje penjenega polietilena, ne glede na njihovo končno uporabo, so opisani v točki 7. Neobvezni preskusi za ugotavljanje lastnosti, ki so pomembne za določene načine uporabe, so opisani v točki 8.

General Information

Status
Published
Publication Date
31-Mar-2012
Technical Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
01-Apr-2012
Completion Date
01-Apr-2012

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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,
+20
(23 ± 5) °C and 50 % relative humidity,
−10
+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

...

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