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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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Smart Farming Standards and specifications are drivers for the digitalization of agriculture
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Publications of ISO/TC 281/WG 3

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ISO 4240-2	2024-09	Standards	Fine bubble technology - Environmental applications - Part 2: Test method for evaluating aeration performance of fine bubble jet devices More	Order from DIN Media
ISO 7428-1	2024-05	Standards	Fine bubble technology - Domestic applications - Part 1: Assessment of showerhead devices by evaluating size and concentration indices of generated fine bubbles More	Order from DIN Media
ISO 7429-1	2024-04	Standards	Fine bubble technology - Industrial and consumer device applications - Part 1: Assessment of water pressure driven nozzles by evaluating size and concentration indices of generated fine bubbles More	Order from DIN Media
ISO 20304-1	2020-12	Standards	Fine bubble technology - Water treatment applications - Part 1: Test method for evaluating ozone fine bubble water generating systems by the decolorization of methylene blue More	Order from DIN Media
ISO 20304-2	2024-01	Standards	Fine bubble technology - Water treatment applications - Part 2: Test methods using Escherichia coli as a test micro-organism More	Order from DIN Media
ISO 21256-2	2020-01	Standards	Fine bubble technology - Cleaning applications - Part 2: Test method for cleaning machine-oil stained surfaces of machined metal parts More	Order from DIN Media
ISO 21256-3	2021-07	Standards	Fine bubble technology - Cleaning applications - Part 3: Test method for cleaning hard flooring surfaces More	Order from DIN Media
ISO 23016-1	2025-07	Standards	Fine bubble technology - Agricultural applications - Part 1: Test method for evaluating the growth promotion of hydroponically grown lettuce More	Order from DIN Media
ISO 23016-2	2019-07	Standards	Fine bubble technology - Agricultural applications - Part 2: Test method for evaluating the promotion of the germination of barley seeds More	Order from DIN Media
ISO 23016-4	2023-12	Standards	Fine bubble technology - Agricultural applications - Part 4: Test method for evaluating the number concentration of ultrafine bubbles (UFB) achieving the promotion of barley seed germination More	Order from DIN Media

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