ISO 14931 pdf free download

ISO 14931-2021 pdf free download.Leather一Leather for apparel (excluding furs)一Specifications and sampling procedures.
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-B02, Textiles — Tests for colourfastness — Part B02: Colourfastness to artificial light: Xenon arc fading lamp test
Iso 2418, Leather — Chemical, physical and mechanical and fastness tests — Sampling location
ISO 2419, Leather — Physical and mechanical tests — Sample preparation and conditioning
ISO 2588, Leather — Sampling — Number of items for a gross sample
ISO 3376, Leather — Physical and mechanical tests — Determination of tensile strength and percentage elongation
ISO 3377-1, Leather — Physical and mechanical tests — Determination of tear load — Part 1: Single edge tear
Iso 4044, Leather — Chemical tests — Preparation of chemical test samples
ISO 4045, Leather — Chemical tests — Determination of pH and difference figure
ISO 5402-1, Leather — Determination offlex resistance — Part 1: Flexometer method
ISO 11640, Leather — Tests for colourfastness — Colourfastness to cycles of to-and-fro rubbing
ISO 11642, Leather — Tests for colourfastness — Colourfastness to water
ISO 11643, Leather — Tests for colourfastness — Colourfastness of small samples to solvents
ISO 11644, Leather — Test for adhesion offinish
ISO 15700, Leather — Tests for colourfastness — Colourfastness to water spotting
ISO 17070, Leather — Chemical tests — Determination of tetrachiorophenol-, trichlorophenol-, dichiorophenol-, rnonochloro phenol-isomers and pentachloro phenol content
ISO 17075-1, Leather — Chemical determination of chromium(Vl) content in leather — Part 1:
Calorimetric method
ISO 17075-2, Leather — Chemical determination of chromium(VI) content in leather — Part 2:
Chromatographic method
ISO 17186, Leather — Physical and mechanical tests — Determination of surface coating thickness ISO 17226-1, Leather — Chemical determination of formaldehyde content — Part 1: Method using high- performance liquid chromatography rights reserved
ISO 14931:2021(E)
ISO 17233, Leather — Physical and mechanical tests — Determination of cold crack temperature of surface coatings
ISO 17234-1, Leather — Chemical tests for the determination of certain azo colourants in dyed leathers — Part 1: Determination of certain aromatic amines derived from azo colourants
ISO 17234-2, Leather — Chemical tests for the determination of certain azo colorants in dyed leathers — Part 2: Determination of4-aminoazobenzene
ISO 23910, Leather — Physical and mechanical tests — Measurement of stitch tear resistance
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 ht1p/Jwww.iso.org/obp
— I EC Electropedia: available at http://www.electropedia.org/
4 Sampling
4.1 When possible, the location and identification of laboratory samples shall be in accordance with
ISO 2418.
4.2 The number of samples shall be by agreement between the interested parties, except in cases of dispute, when the number of samples shall be in accordance with ISO 2588. If the lot size of the leathers is high, the maximum number of samples shall be five.
5 Sample conditioning and preparation
5.1 Laboratory samples for physical, mechanical and fastness tests shall be conditioned and prepared in accordance with ISO 2419.
5.2 Laboratory samples for chemical tests shall be conditioned and prepared in accordance with
ISO 4044.
6 Characteristics, test methods and recommended values
Table 1 and Table 2 show the characteristics, test methods and recomnnded values for different types of leather intended for apparel. The essential characteristics in Table 1 shall all be taken into account, even if they can have different relative weights in the process of evaluation relative to use. The subsidiary characteristics in Table 2 shall be agreed by the parties concerned according to the intended use of the leather.ISO 14931 pdf free download.