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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 NA 054-05-03 AA

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Document number	Begin	Title	Comment
ISO/WD 4427-4	2026-05-27	Plastics piping systems for water supply and for drainage and sewerage under pressure - Polyethylene (PE) - Part 4: Part 4: Valves More	Comment
DIN EN ISO 1452-4 rev	2026-02-13	Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 4: Valves More	Comment
ISO/AWI 1452-4	2026-02-09	Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 4: Valves More	Comment
ISO 24994	2024-04-03	Plastics piping systems - Determination of selected metal and semi-metal migration values of plastic pipes, fittings and their joints More	Comment

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