ENIS0 20701 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM August 2024 ICS 59.140.30 Supersedes EN IS0 20701:2018 English Version Leather - Tests for colour fastness - Colour fastness to saliva (IS0 20701:2024) Cuir - Essais de solidité des coloris - Solidite des coloris Leder-Prifung der Farbechtheit-Farbechtheit a la salive (IS0 20701:2024) gegenuber Speichel (IS0 20701:2024) ThisEuropeanStandardwasapprovedbyCENon16August2024 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 Centre has the same status as the official versions. CENmembers arethenational standardsbodiesofAustria,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, Tirkiye and United Kingdom. ces EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2024CEN All rights of exploitation in any form and by any means reserved Ref.No.ENIS020701:2024E worldwide for CEN national Members. EN IS0 20701:2024 (E) European foreword This document (EN IS0 20701:2024) has been prepared by Technical Committee IULTCS "International Union of Leather Technologists and Chemists Societies" in collaboration with Technical Committee CEN/TC 289 “Leather" the secretariat of which is held by UNI. 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of an identical text or by endorsement, at the latest by February 2025, and conflicting national standards shall be withdrawn at the latest by February 2025. 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 IS0 20701:2018. Any feedback and questions on this document should be directed to the users' national standards body/national committee. A complete listing of these bodies can be found on the CEN website 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, 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 the United Kingdom. Endorsement notice Contents Page Foreword. iv 1 Scope 2 Normative references 1 3 Terms and definitions 4 Principle. 1 5 Apparatus and materials 2 6 Reagents. 7 Leather specimen and test pieces 3 8 Procedure 3 9 Evaluation 3 10 Precision 4 11 Test report. @ IS0 2024 - All rights reserved iii