EN 17131-1 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM December 2025 ICS 59.080.01 Supersedes EN 17131:2019 English Version Textiles and textile products ： Determination of certain residual solvents - Part 1: Determination of aprotic solvents, method using gas chromatography Textiles et produits textiles Textilien und textile Erzeugnisse Determination de certains solvants réesiduels BestimmungbestimmterLosemittelrickstande Partie1:Détermination des solvants aprotiques, Teil 1: Bestimmung aprotischer Losemittel, méthode par chromatographie en phase gazeuse Verfahren mittels Gaschromatographie This European Standard was approved by CEN on 19 October 2025. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 Centrehas the same status asthe officialversions. 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,Turkiyeand United Kingdom. er EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2025CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17131-1:2025 E worldwide for CEN national Members. EN 17131-1:2025 (E) Contents Page European foreword.. ..3 Introduction 1 Scope... 2 Normative references. 3 Terms and definitions .. 4 Principle.. 5 Reagents 6 Apparatus 7 Preparation of test samples .. 7.1 7.2 Preparation of test specimens.. 8 Procedur 8.1 Extraction. 8.2 Determination with GC-MS.. 8.2.1 Preparation of the calibration solutions.... 8.2.2 Determination with GC-MS. 9 Expression of results.. 8 9.1 Calculation..... 9.2 Limits of quantification of the test method 9.3 Reliability of the test method .... 10 Test report. Annex A (informative) Example of instrumental conditions. 10 A.1 Measuring technique . .10 A.2 Chromatographic conditions .. .10 A.3 MS conditions Annex B (informative) Reliability of the method.. .12 Bibliography 13 2 EN 17131-1:2025 (E) European foreword This document (EN 17131-1:2025) has been prepared by 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 June 2026, and conflicting national standards shall be withdrawn at the latest by June 2026. 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 document supersedes EN 17131:2019. This document includes the following significant technical changes with respect to EN 17131:2019: - the title has been changed; N,N-dimethylacetamide (DMAC) and N-methyl-2-pyrrolidone (NMP) have been included in the Introduction; Clause 1: The scope has been extended to include the analytes DMAC, NMP and N-ethyl-2- pyrrolidone (NEP); Clause 5: DMAC, NMP and NEP have been added; 5.7: The descriptions of the preparation of stock solutions have been changed in order to consider the additional analytes DMAC, NMP and NEP; 8.2: The description of the determination with GC-MS has been changed in order to consider the additional analytes DMAC, NMP and NEP; 9.1: The headline has been added and the description of the calculation has been changed in order to consider the