BS ISO BRITISH STANDARD 24339:2006 Laminate and textile floor coverings - Determination of dimensional variations after exposure to humid and dry climate conditions ICS 97.150 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO24339:2006 National foreword ThisBritish Standard reproduces verbatimIS024339:2006 andimplements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coverings, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled "International Standards Correspondence Index or by using the“Search" facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity fromlegal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 11 and aback cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard was Amendmentsissuedsincepublication published under the authority of the Standards Policy and Amd. No. Date Comments Strategy Committee on 30 June2006 BSI 2006 ISBN0580484459 BS ISO 24339:2006 ISO INTERNATIONAL STANDARD 24339 First edition 2006-05-01 Laminate and textile floor coverings Determinationof dimensional variations after exposure to humid and dry climate conditions RevetementsdesolsstratifiesettextilesDeterminationdes climatiqueshumidesetseches Reference number ISO24339:2006(E) ii BSISO24339:2006 Contents Page Foreword iv 1 Scope 2 Principle. 3 Apparatus. 4 Testspecimens. 3 Procedure.. 5.1 Installationofthetestfloor. 5.2 Climatic test periods..... 5.3 Measurements...... 5 6 Calculationsandexpressionof results... 6.1 General... 6.2 Dimensionalvariations... 6.3 Width flatness (only for laminatefloor coverings) (C).... 9 6.4 Openings between the elements (onlyfor laminatefloor coverings)(JLand Js)... 10 6.5 Height difference between elements (onlyfor laminate floor coverings)(hy and hs)... 6.6 Flatness (only for laminate floor coverings) (f and fw)..... 10 7 Test repor ili BSIS024339:2006 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 non-governmental, in liaison_with isO, also take part in the work. iso collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 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 memberbodies casting a vote ISO24339was prepared byTechnical CommitteeISO/TC219,Floor coverings. iv BSISO24339:2006 Laminate andtextile floor coveringsDetermination of dimensional variationsafterexposure tohumid and dry climate conditions 1 Scope This International Standard specifies a process to determine the capability of laminate and textile floor coverings. 2 Principle week, dimensional variations, flatness, openings between elements, height difference