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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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Projects of CEN/TC 155

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Document number	Begin	Title	Comment
DIN EN ISO 22391-1 rev	2026-03-16	Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 1: General More	Comment
DIN EN ISO 22391-2 rev	2026-03-16	Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 2: Pipes More	Comment
DIN EN ISO 22391-3 rev	2026-03-16	Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 3: Fittings More	Comment
DIN EN ISO 22391-5 rev	2026-03-16	Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 5: Fitness for purpose of the system More	Comment
DIN EN ISO 1167-2 rev	2025-04-22	Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces More	Comment

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