ANSI Z21.22-2015 (R2020)/CSA 4.4-2015 (R2020)

Identifier
ANSI Z21.22-2015 (R2020)/CSA 4.4-2015 (R2020)
Title
Relief valves for hot water supply systems
Type of Document
Standard
Applicability
Safety
Publisher
CSA/ANSI
Country Coverage
Canada/USA
Document Status
Current
Edition Date
2020 Jan 01
url
https://store.csagroup.org/ccrz__ProductDetails?viewState=DetailView&cartID=&sk…
Element
H₂ Boilers & Water Heaters
Relevance to the Element
Informative
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Element
NG-H₂ Boilers & Water Heaters
Relevance to the Element
Pertinent
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