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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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Projects of ISO/TC 281/WG 2

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Document number	Begin	Title	Comment
ISO/FDIS 24261-1	2026-05-27	Fine bubble technology - Elimination method for sample characterization - Part 1: Evaluation procedure More	Comment
ISO/DIS 21910-1	2025-07-24	Fine bubble technology - Characterization of microbubbles - Part 1: Off-line evaluation of size/size index More	Comment
ISO/FDIS 25549	2025-02-20	Fine bubble technology - Evaluation method for determining the shear viscosity of ultrafine bubble dispersions More	Comment
ISO 7383-3	2025-02-20	Fine bubble technology - Evaluation method for determining gas content in fine bubble dispersions in water - Part 3: Ozone content More	Comment
ISO/FDIS 20018-1	2024-02-02	Fine bubble technology - Characterization of ultrafine bubbles - Part 1: Data correction to exclude particulate contaminants for evaluating size and concentration indices More	Comment

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