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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Climate change Standards and specifications support climate targets
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Publications of CEN/TC 289/WG 1

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DIN EN ISO 17234-2	2026-09	Draft standard	Leather - Chemical tests for the determination of certain azo colorants in dyed leathers - Part 2: Determination of 4-aminoazobenzene (ISO/DIS 17234-2:2026); German and English version prEN ISO 17234-2:2026 More	Read draft and comment
DIN EN ISO 17489	2014-03	Standards	Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013); German version EN ISO 17489:2013 More	Order from DIN Media
DIN EN ISO 18218-1	2023-09	Standards	Leather - Determination of ethoxylated alkylphenols (APEO) - Part 1: Direct method (ISO 18218-1:2023); German version EN ISO 18218-1:2023 More	Order from DIN Media
DIN EN ISO 18218-2	2019-10	Standards	Leather - Determination of ethoxylated alkylphenols - Part 2: Indirect method (ISO 18218-2:2019); German version EN ISO 18218-2:2019 More	Order from DIN Media
DIN EN ISO 18219-1	2021-09	Standards	Leather - Determination of chlorinated hydrocarbons in leather - Part 1: Chromatographic method for short-chain chlorinated paraffins (SCCPs) (ISO 18219-1:2021); German version EN ISO 18219-1:2021 More	Order from DIN Media
DIN EN ISO 18219-2	2021-09	Standards	Leather - Determination of chlorinated hydrocarbons in leather - Part 2: Chromatographic method for middle-chain chlorinated paraffins (MCCPs) (ISO 18219-2:2021); German version EN ISO 18219-2:2021 More	Order from DIN Media
DIN EN ISO 19070	2016-07	Standards	Leather - Chemical determination of N-methyl-2-pyrrolidone (NMP) in leather (ISO 19070:2016); German version EN ISO 19070:2016 More	Order from DIN Media
DIN EN ISO 19071	2016-07	Standards	Leather - Chemical tests - Determination of chromium(VI) and the reductive potential for chromium tanning agents (ISO 19071:2016); German version EN ISO 19071:2016 More	Order from DIN Media
DIN EN ISO 20136	2020-12	Standards	Leather - Determination of degradability by micro-organisms (ISO 20136:2020); German version EN ISO 20136:2020 More	Order from DIN Media
DIN EN ISO 20137	2024-02	Standards	Leather - Chemical tests - Guidelines for testing critical chemicals in leather (ISO 20137:2023); German version EN ISO 20137:2023 More	Order from DIN Media

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