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  4. Standard "ISO 21922:2021"
Standard ISO 21922:2021 31.8.2021 preview

ISO 21922:2021

Refrigerating systems and heat pumps — Valves — Requirements, testing and marking

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STANDARD published on 31.8.2021


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The information about the standard:

Designation standards: ISO 21922:2021
Publication date standards: 31.8.2021
SKU: NS-1034280
The number of pages: 90
Approximate weight : 301 g (0.66 lbs)
Country: International technical standard
Category: Technical standards ISO

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The category - similar standards:

Heat pumpsRefrigerating technology

These changes apply to this standard:

Preview ISO 21922:2021/Amd1:2024 13.11.2024
ISO 21922:2021/Amd1:2024 Change

Refrigerating systems and heat pumps — Valves — Requirements, testing and marking — Amendment 1
(Systemes de réfrigération et pompes a chaleur — Robinetterie — Exigences, essais et marquage — Amendement 1)

Change published on 13.11.2024

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