BS EN ISO 20137:2017 pdf download

BS EN ISO 20137:2017 pdf download.Leather — Chemical tests — Guidelines for testing critical chemicals in leather
1 Scope
This document gives guidelines to apply the available chemical test methods for leather. This information can be used by those involved in setting specifications for leather, especially for those parameters relating to restricted chemical substances. Lists of restricted chemicals contain many substances that are not relevant to the leather industry. Those chemical substances that are not mentioned in this document do not need to be determined, thus avoiding unnecessary analytical costs.
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 4045, Leather — Chemical tests — Determination of pH
ISO 5398-1, Leather — Chemical determination of chromic oxide content — Part 1: Quantification by titration
ISO 5398-2, Leather — Chemical determination of chromic oxide content — Part 2: Quantification by colorimetric determination
ISO 5398-3, Leather — Chemical determination of chromic oxide content — Part 3: Quantification by atomic absorption spectrometry
ISO 5398-4, Leather — Chemical determination of chromic oxide content — Part 4: Quantification by inductively coupled plasma – optical emission spectrometer (ICP-OES)
ISO 13365, Leather — Chemical tests — Determination of the preservative (TCMTB, PCMC, OPP, OIT) content in leather by liquid chromatography
ISO 17070, Leather — Chemical tests — Determination of tetrachlorophenol-, trichlorophenol-,dichlorophenol-, monochlorophenol-isomers and pentachlorophenol content
ISO 17072-1, Leather — Chemical determination of metal content — Part 1: Extractable metals
ISO 17072-2, Leather — Chemical determination of metal content — Part 2: Total metal content
ISO/17075-1, Leather — Chemical determination of chromium (VI) content in leather — Part 1: Colorimetric method
ISO/17075-2, Leather — Chemical determination of chromium (VI) content in leather — Part 2: Chromatographic method
ISO 17226-1, Leather — Chemical determination of formaldehyde content — Part 1: Method using high performance liquid chromatography
ISO 17226-3, Leather — Chemical determination of formaldehyde content — Part 3: Determination of formaldehyde emissions from leather
ISO 17234-1, Leather — Chemical tests for the determination of certain azo colorants in dyed leathers —Part 1: Determination of certain aromatic amines derived from azo colorants
ISO 17234-2, Leather — Chemical tests for the determination of certain azo colorants in dyed leathers —Part 2: Determination of 4-aminoazobenzene
ISO 18218-1, Leather — Determination of ethoxylated alkylphenols — Part 1: Direct method
ISO 18218-2, Leather — Determination of ethoxylated alkylphenols — Part 2: Indirect method
ISO 18219, Leather — Determination of chlorinated hydrocarbons in leather — Chromatographic method for short-chain chlorinated paraffins (SCCP)
ISO 19070, Leather — Chemical determination of N-methyl-2-pyrrolidone (NMP) in leather
ISO/TS 16179, Footwear — Critical substances potentially present in footwear and footwear components —Determination of organotin compounds in footwear materials
ISO/TS 16181, Footwear — Critical substances potentially present in footwear and footwear components —Determination of phthalates in footwear materials
ISO/TS 16186, Footwear — Critical substances potentially present in footwear and footwear components —Test method to quantitatively determine dimethyl fumarate (DMFU) in footwear materials
ISO/TS 16189, Footwear — Critical substances potentially present in footwear and footwear components —Test method to quantitatively determine dimethylformamide in footwear materials