EN ISO 8307:2007

SLOVENSKI STANDARD
01-marec-2008
1DGRPHãþD
SIST EN ISO 8307:1999
Polimerni materiali iz mehke pene - Ugotavljanje vzmetnosti z odbojem kroglice
(ISO 8307:2007)
Flexible cellular polymeric materials - Determination of resilience by ball rebound (ISO
8307:2007)
Weich-elastische polymere Schaumstoffe - Bestimmung der Kugel-Rückprallelastizität
(ISO 8307:2007)
Matériaux polymères alvéolaires souples - Détermination de la résilience par
rebondissement d'une bille (ISO 8307:2007)
Ta slovenski standard je istoveten z: EN ISO 8307:2007
ICS:
83.100
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 8307
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2007
ICS 83.100 Supersedes EN ISO 8307:1997
English Version
Flexible cellular polymeric materials - Determination of resilience
by ball rebound (ISO 8307:2007)
Matériaux polymères alvéolaires souples - Détermination Weich-elastische polymere Schaumstoffe - Bestimmung
de la résilience par rebondissement d'une bille (ISO der Kugel-Rückprallelastizität (ISO 8307:2007)
8307:2007)
This European Standard was approved by CEN on 24 November 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8307:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 8307:2007) has been prepared by Technical Committee ISO/TC 45 "Rubber and
rubber products" 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 June 2008, and conflicting national standards shall be withdrawn at
the latest by June 2008.
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 8307:1997.
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, 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 8307:2007 has been approved by CEN as a EN ISO 8307:2007 without any modification.

INTERNATIONAL ISO
STANDARD 8307
Second edition
2007-12-15
Flexible cellular polymeric materials —
Determination of resilience by ball
rebound
Matériaux polymères alvéolaires souples — Détermination de la
résilience par rebondissement d'une bille

Reference number
ISO 8307:2007(E)
©
ISO 2007
ISO 8307:2007(E)
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ISO 8307:2007(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
4 Principle. 1
5 Apparatus. 1
5.1 General. 1
5.2 Apparatus with manual reading . 2
5.3 Apparatus with automatic reading. 3
6 Test pieces. 3
7 Number of test pieces . 3
8 Test conditions . 3
9 Procedure. 4
9.1 Preflex conditioning . 4
9.2 Test method. 4
10 Expression of results. 4
11 Precision. 4
12 Test report. 4
Annex A (informative) Example of electronic measurement procedure. 6

ISO 8307:2007(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 identifyin
...