ISO INTERNATIONAL STANDARD 24341 First edition 2006-02-01 Resilient and textile floor coverings Determination of length, width and straightness of sheet RevetementsdesolresilientsettextilesDeterminationdelalongueur, de lalargeuretdela rectitudedes lés Reference number ISO 24341:2006(E) ISO @ISO2006 Copyright Intemational Organization for Standardization Not for Resale ISO24341:2006(E) Foreword IsO (the International Organization for Standardization)is a worldwide federationof national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been Electrotechnical Commission (IEC)onall matters of electrotechnical standardization. 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 memberbodies 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. ISO24341waspreparedbyTechnicalCommitteeISO/TC219,Floorcoverings. i ed without license from IHS Not for Rosale Cepyrhtemalional Orgenizalinfor Standardzatin Noreroctiorntwoing emitedwihutlicne frm Not for Resale ISO 24341:2006(E) INTERNATIONALSTANDARD Resilientandtextilefloor coveringsDeterminationof length, widthandstraightnessofsheet 1 Scope This International Standard specifies methods for determining the length, width and straightness of resilient or textile floor coverings in sheet form. straight line. Principle 2 A test piece, resting on a flat surface, is measured at several points along its width and length. The straightness at the deviation point of a test piece of a resilient or textile sheet resting on a flat surface is 3Apparatus 3.1 Ruler or semi-rigid tape, accurate 0,05%. 3.2 Table or flat surface, of greater width and, if possible, of greater length than the test piece to be measured. 3.3 Measuring device, for measuring the length of the sheet to an accuracy of 0,1 %, e.g. a calibrated measuring wheel, steeltape. 3.4 String line, length 10 m. 4 Atmosphere for conditioning and testing Condition thetest specimen for at least4h at ambientroom temperature andtest in the same environment. 5 Samplingandselectionofspecimens taken. 1 Not for Resale ISO24341:2006(E) 6 Test procedure 6.1Measurementofwidth Place the test piece on the table, with the wear layer upward. Measure the width, using a ruler or semi-rigid tape (3.1), at three positions, equally divided over the length of the test piece, as shown in Figure 1. 7/1 a Test piece width. 1 Test piece length. Figure1—Measurementof width 6.2Measurementoflength 6.2.1 Lay out the sheet completely flat with the wear layer upward. Measure with measuring device (3.3) the Figure 2. 6.2.2 If the table is shorter than the length of the roll, take the measurement part by part. Unroll as far as Alternatively, if the roll is significantly longer than the table, measure the length of the roll by re-rolling using a devicewitha calibrated measuringwheel. @ ISO 2006-All rights reserved d without license from IHS Not for Resale ISO24341:2006(E) Dimensions in millimetres 200 200 1 Test piece length. Figure2—Measurementoflength 6.3Measurementofstraightness measure the straightness of an edge against the string line. Record the greatest deviation and the reference length, as shown in Figure 3. Key 1 sheet 2 string line a Reference length. b Deviation. Figure3—Measurementusingastringline Cepyriahtintemalional organizalian for standardzalion'ghts reserved 3 d by IHS under license with ISO d without license from IHS Not for Resale ISO24341:2006(E) 7 Calculationandexpressionofresults nearest5mmandexpresstheresult inmillimetres metres. Express the results of thegreatest deviation from straightness to the nearest 5mm. 8Pre