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EUROPEANSTANDARD EN IS0 1856 NORMEEUROPEENNE EUROPAISCHE NORM August 2018 ICS83.100 Supersedes ENIS01856:2000, English Version Flexible cellular polymeric materials - Determination of compression set (Is0 1856:2018) Materiaux polymeres alveolaires souples - Weich-elastische polymere Schaumstoffe - Determination de la deformation remanente Bestimmung des Druckverformungsrestes apres compression (Is0 1856:2018) (ISO 1856:2018) This European Standard was approved by CEN on 24 July 2018. references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre ortoanyCENmember This European Standard exists in three official versions (English, French, German). A version in any otherlanguage 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: AvenueMarnix17,B-1000 Brussels 2018CEN All rights of exploitation in any form and by any means reserved Ref.No.EN IS0 1856:2018: E worldwide for CEN national Members EN IS0 1856:2018 (E) European foreword This document (ENIS01856:2018) hasbeen prepared by Technical Committee IS0/TC 45"Rubberand rubber products"in collaboration with Technical Committee CEN/TC 249"Plastics"the secretariat of which is held byNBN 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 February 2019, and conflicting national standards shallbewithdrawnatthelatestbyFebruary2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This documentsupersedes ENIS01856:2000. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implementthis 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice The text of IS0 1856:2018hasbeen approved by CENas ENIS0 1856:2018without any modification. i INTERNATIONALSTANDARD IS01856:2018 Flexible cellular polymeric materials - Determination of compression set WARNING-Persons using this document should be familiar with normal laboratory practice This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health. 1 Scope Thisdocumentspecifiesthreemethodsfordeterminingthecompressionsetofflexiblecellularmaterials. This document applies to latex and polyurethane foams of thickness greater than 2 mm. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undatedreferences,thelatestedition ofthereferenced document (includinganyamendments)applies. IS01923,Cellularplasticsand rubbers-Determinationof linear dimensions ISO 23529, Rubber - General procedures for preparing and cond

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