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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 6

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DIN EN ISO 14088	2020-07	Standards	Leather - Chemical tests - Quantitative analysis of tanning agents by filter method (ISO 14088:2020); German version EN ISO 14088:2020 More	Order from DIN Media
DIN EN ISO 21135	2024-09	Standards	Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO 21135:2024); German version EN ISO 21135:2024 More	Order from DIN Media
DIN EN ISO 23649	2025-06	Standards	Chemicals for the leather tanning industry - Determination of cyclosiloxanes (ISO 23649:2025); German version EN ISO 23649:2025 More	Order from DIN Media
DIN EN ISO 25712	2026-09	Standards	Chemicals for the leather tanning industry - Determination of the total content of melamine (ISO 25712:2026); German version EN ISO 25712:2026 More	Order from DIN Media

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