ISO 17076-1-2020 pdf download.Leather- Determination of abrasion resistance一 Part 1: TaberR method. This document specifies a method of determining the abrasion resistance of leather using a Taber® apparatus. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 105-A02, Textiles — Tests for colourfastness — Part A02: Grey scale for assessing change in colour ISO 2418, Leather — Chemical, physical and mechanical and fastness tests — Sampling location ISO 2419, Leather — Physical and mechanical tests — Sample preparation and conditioning ISO 6103, Bonded abrasive products — Permissible unbalances of grinding wheels as delivered — Static testing 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — I EC Electropedia: available at http://www.electropedia.org/ 4 Principle The test piece is rotated on a vertical axis against the sliding rotation of two abrading wheels which…

BS EN ISO 5404:2011 pdf free.Leather一Physical test methods – Determination of water resistance of heavy leathers (ISO 5404:2011). BS EN ISO 5404 specifies a method for determining the water resistance of heavy leathers. The method allows determination of the penetration time, water absorption, area of penetration and water penetration rate as required, It is applicable to all types of heavy leathers. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2418, Leather — Chemical, physical and mechanical and fastness tests — Sampling location ISO 2419, Leather — Physical and mechanical tests — Sample preparation and conditioning ISO 2589, Leather — Physical and mechanical tests — Determination of thickness 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. penetration time duration of flexing which is just sufficient to cause water to cross from the wetted (grain) surface to the other face of the test piece NOTE The penetration time is expressed in minutes. 3.2 water absorption gain in mass of the test piece due to…

ISO 17131-2020 pdf free download.Leather- Identification of leather with microscopy. This document specifies a method using microscopy to identify leather and distinguish it from other materials. The method is not applicable for identifying specific leathers (e.g. sheep leather). 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 17186, Leather — Physical and mechanical tests — Determination of surjáce coating thickness EN 15987, Leather — Terminology — Key definitions for the leather trade 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 15987 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — IEC Electropedia: available at http://www.clectropedia.org/ 4 Principle A cross-section of the material is cut perpendicular to the surface. The material structure is compared with typical pictures or known samples by means of microscopy. The method should be carried out by operators experienced in material…