EN ISO 7211-2 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM September 2024 ICS 59.080.30 Supersedes EN 1049-2:1993 English Version Textiles - Methods for analysis of woven fabrics construction - Part 2: Determination of number of threads per unit length (IS0 7211-2:2024) Textiles - Meéthodes d'analyse de la construction des Textilien - Verfahren zur Analyse des Aufbaus von tissus - Partie 2: Détermination du nombre de fils par Webwaren-Teil2:BestimmungderAnzahlderFaden unité de longueur (IS0 7211-2:2024) je Langeneinheit (IS0 7211-2:2024) This European Standard was approved by CEN on 3 September 2024. 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-CENELEC 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 translationundertheresponsibilityofa CENmemberintoitsownlanguageand notifiedtotheCEN-CENELECManagement 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway. Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. cer EUROPEANCOMMITTEEFOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels 2024CEN Ref. No. EN ISO 7211-2:2024 E All rightsofexploitationinanyformandbyanymeansreserved worldwide for CEN national Members. EN IS0 7211-2:2024 (E) European foreword in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products" the secretariat of which is held by BSI. 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of an identical text or by endorsement, at the latest by March 2025, and conflicting national standards shall be withdrawn at the latest by March 2025. Attention is drawn to the possibility that some of the elements of this document may be the subject of This document supersedes EN 1049-2:1993. Any feedback and questions on this document should be directed to the users' national standards body/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tirkiye and the United Kingdom. Endorsement notice The text of IS0 7211-2:2024 has been approved by CEN as EN IS0 7211-2:2024 without any modification. Contents Page Foreword. ..iv 1 Scope .1 2 Normative references .1 3 Terms and definitions. ..1 4 Principle ..1 5 Minimum measuring distance .2 6 Conditioning and testing atmosphere .2 7 Preparation of test specimens .2 8 Method A - Dissection of fabric. ..2 .2 8.1 Apparatus 8.2 Procedure ..3 Method B - Counting glass .3 9.1 Apparatus .3 9.2 Procedure. ..3 10 Method C - Traversing thread counter .3 10.1 Apparatus 10.2 Procedure ..3 11 Calculation and expression of results .4 12 Test report. .4 @ IS0 2024 - All rights reserved iii