1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Resilient floor coverings Determination of dimensional stability and curling after exposure to heat (ISO 23999:2018)BS EN ISO 23999:2018National forewordThis British Standard is the UK implementation of EN ISO 23999:201
2、8. It supersedes BS EN ISO 23999:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient and Laminate Floor Coverings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication doe
3、s not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 96232 5ICS 97.150Compliance with a British Standard cannot confer immunity from legal o
4、bligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 23999:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 23999August
5、 2018ICS 97.150 Supersedes EN ISO 23999:2012EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN ISO 23999:2018: EAll rights of exploitation in any form and by any means
6、 reserved worldwide for CEN national MembersResilient floor coverings - Determination of dimensional stability and curling after exposure to heat (ISO 23999:2018)Revtements de sol rsilients - Dtermination de la stabilit dimensionnelle et de lincurvation aprs exposition la chaleur (ISO 23999:2018)Ela
7、stische Bodenbelge - Bestimmung der Manderung und Schsselung nach Wrmeeinwirkung (ISO 23999:2018)This European Standard was approved by CEN on 26 August 2018.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
8、 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
9、, 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, Cr
10、oatia, 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, Tu
11、rkey and United Kingdom.English VersionEN ISO 23999:2018 (E)European forewordThis document (EN ISO 23999:2018) has been prepared by Technical Committee ISO/TC 219 “Floor coverings“ in collaboration with Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings” the secretariat
12、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 February 2019, and conflicting national standards shall be withdrawn at the latest by February 2019.Attention is drawn to th
13、e 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 document supersedes EN ISO 23999:2012.According to the CEN-CENELEC Internal Regulations, the national standards organizat
14、ions of the following countries are bound to implement this 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, Malt
15、a, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 23999:2018 has been approved by CEN as EN ISO 23999:2018 without any modification.iiBS EN ISO 23999:2018ISO 23999:2018Foreword iv
16、1 Scope .12 Normative references 13 Terms and definitions .14 Principle 14.1 Dimensional stability . 14.2 Curling 15 Apparatus .25.1 Oven. 25.2 Support plates. 25.3 Measuring device. . 25.3.1 Measuring equipment. 25.3.2 Micrometer. . 25.3.3 Rigid plate. . 25.3.4 Square template. 35.3.5 Block and dia
17、l gauge. 35.3.6 Calibrated shim or spacer block. 45.4 Scoring device. . 46 Test specimens 47 Conditioning 58 Test procedure 58.1 Test specimen preparation . 58.2 Initial measurement . 68.2.1 Curling . 68.2.2 Linear dimensions 68.3 Heat exposure 68.4 Reconditioning 78.5 Final measurement 78.5.1 Gener
18、al 78.5.2 Curling . 78.5.3 Linear dimensions 79 Calculation and expression of results .79.1 For curling . 79.2 For dimensional stability . 710 Test report .8Annex A (informative) Measurement of size change due to heat9Bibliography .11 ISO 2018 All rights reserved iiiContents PageBS EN ISO 23999:2018
19、ISO 23999:2018ForewordISO (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
20、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) o
21、n all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted
22、. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 an
23、y or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of us
24、ers and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barrie
25、rs to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 219, Floor coverings.This second edition cancels and replaces the first edition (ISO 23999:2008), which has been technically revised.The main changes compared to the previo
26、us edition are as follows: cross-references within the document have been updated; minor editorial changes have been made; the scope has been broadened to allow testing of planks; the possibility of additional testing temperatures has been introduced; the specimen dimensions have been specified; an
27、appendix has been added to allow for dimensional changes immediately after exposure to specified heated exposure conditions.Any feedback or questions on this document should be directed to the users national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.
28、iv ISO 2018 All rights reservedBS EN ISO 23999:2018Resilient floor coverings Determination of dimensional stability and curling after exposure to heat 1 ScopeThis document specifies a method for determining dimensional stability and curling of resilient floor coverings, in the form of sheets, tile o
29、r planks after exposure to heat.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addre
30、sses: ISO Online browsing platform: available at https:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1dimensional stabilityability of a resilient floor covering to retain its original dimensions after exposure to heat, under specified conditions3.2curlingvertical defor
31、mation appearing on the specimen after exposure to a heat treatment, under specified conditions3.3domed materialarea of specimen that does not lie flat against support plate when centred4 Principle4.1 Dimensional stabilityThe relative change in distance between marks or a specific location on a test
32、 specimen is measured before and after exposure to a heat treatment, under specified conditions. In the case of tiles and planks, measurements may be made using a block and dial gauge assembly and marking of the test specimen is not necessarily required.4.2 CurlingThe vertical deformations are measu
33、red in the test specimen after the specified heat treatment.Test specimens are placed in an oven at an elevated temperature, after which curling and dimensional stability are determined. In the case of domed material or where material exhibits negative curling, INTERNATIONAL STANDARD ISO 23999:2018
34、ISO 2018 All rights reserved 1BS EN ISO 23999:2018ISO 23999:2018turn the test specimen over to measure inverted or with the back of the sample facing up. Measure curling and mark appropriately as negative curling.5 Apparatus5.1 Oven.The oven shall be thermostatically controlled and ventilated, capab
35、le of being maintained at a uniform temperature of 80 C 2 C. If a temperature setting other than 80 C is utilized, mark the test sheet as appropriate and verify the ovens capability to maintain a uniform temperature set point.In operation, ensure that radiation from the heating element does not dire
36、ctly reach the test specimens or support plates.5.2 Support plates.The support plates shall be of metal, e.g. aluminium or stainless steel, of dimensions larger than the test specimen and not less than 1,5 mm in thickness. Ensure that the support plates are kept smooth and polished so that surface f
37、riction does not interfere with free shrinkage or growth of the test specimens. The plates shall be flat and free of convex or concave warp and fully support the sample (e.g. a wire rack support plate is not acceptable.).The shapes and dimensions of the apparatus specified in 5.1 and 5.2 shall be su
38、ch that:a) curling can be measured without removing the test specimens from the support plates, except in the case of domed material or where material exhibits negative curling;b) the distance between the plates and the vertical walls of the oven is more than 50 mm;c) the vertical distance between t
39、he support plates and between the plates and the oven is more than 100 mm.5.3 Measuring device.5.3.1 Measuring equipment.For sheet, tile (between 229 mm and 610 mm or partial, for dimensions larger than 610 mm in size) or plank (between 229 mm and 610 mm or partial, for dimensions larger than 610 mm
40、 in size) test specimens, the measuring equipment shall preferably be an optical bench, for non-contact measurements. The equipment shall have a range of at least 200 mm and a precision of 0,02 mm. For many types of optical benches, ensure that the test specimen is properly seated against the base h
41、orizontal index guide when a specific measurement is being taken. Test specimens with concave or convex edges can be read incorrectly.5.3.2 Micrometer.For sheet, tile or plank (partial) specimens, the micrometer shall be pillar-mounted. Alternatively, other suitable device accurate to at least 0,1 m
42、m may be used.5.3.3 Rigid plate.For sheet or tile test specimens, a rigid plate of steel, squared and finished, of dimensions 240 mm 240 mm with holes for the scores (see Figure 1) shall be used. For planks, especially more rigid planks, the preferred method to measure dimensional stability is with
43、a block and dial setup, although a rigid plate set up could be utilized.2 ISO 2018 All rights reservedBS EN ISO 23999:2018ISO 23999:20185.3.4 Square template.For sheet or tile specimens, a square template, of side 610 mm, 508 mm, 305 mm or 229 mm for example, shall be used.Dimensions in millimetresF
44、igure 1 Rigid steel plate5.3.5 Block and dial gauge.For tile or plank (partial) test specimens only, a block and dial gauge as shown in Figure 2 shall be used. ISO 2018 All rights reserved 3BS EN ISO 23999:2018ISO 23999:2018Dimensions in millimetresKey1 edge 1 A1template 610 mm 610 mm2 edge 2 A2temp
45、late 508 mm 508 mm3 edge 3 A3template 305 mm 305 mm4 edge 4 A4template 229 mm 229 mmaWithin 10 % of the corner of the tile edge.bWithin the central 10 % of the tile edge.cWithin 10 % of the corner of the tile edge.dWithin 10 % of the corner of the tile edge.Figure 2 Apparatus for measuring side leng
46、th, straightness and squareness5.3.6 Calibrated shim or spacer block.The calibrated shim or spacer block allows to measure plank width differences utilizing the block and dial gauge apparatus.5.4 Scoring device.A scoring device, e.g. a single edge razor blade, scalpel or scribe point, can be used.6
47、Test specimensFor sheet material, before cutting the test specimens, lay out the product as flat as possible and mark the direction of manufacture.Cut out three (3), nominal 240 mm square test specimens, at equal distance, from the sample material (see Figure 3). The distance between the outer edge
48、of the sample and nearest edge of the test specimen 4 ISO 2018 All rights reservedBS EN ISO 23999:2018ISO 23999:2018shall be at least 100 mm. The test specimen edges shall be parallel/transverse to the direction of manufacture.Dimensions in millimetresKeyb total widthFigure 3 Cutting of test specime
49、ns from sheet or roll productFor tiles and planks, remove product from package, discard top and bottom tile or plank, spread them out, then randomly select three test specimens. The direction of manufacture shall, if possible, be marked on each test specimen. Tiles and planks, if less than 610 mm in width and or length, should be tested as manufactured. If testing samples have profiled edges, it can be easier to cut the profiled edging off, making sure to achieve clean, straight and squared cut edges for testing
