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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Draft standard

OENORM EN ISO 21922/A1
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021/DAM 1:2023) (Amendment)

Title (German)

Kälteanlagen und Wärmepumpen - Ventile - Anforderungen, Prüfung und Kennzeichnung (ISO 21922:2021/DAM 1:2023) (Änderung)

Edition 2023-03-15

Original language English

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

OENORM EN ISO 21922/A1 Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021/DAM 1:2023) (Amendment)

Want to learn more?

OENORM EN ISO 21922/A1
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021/DAM 1:2023) (Amendment)