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NB/T 20500-2025 PDF English

NB/T 20500: Evolution and historical versions

Std ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status
NB/T 20500-2025	English	RFQ	ASK	3 days [Need to translate]	(Technical Specifications for Insulation Installation and Acceptance of Piping in Pressurized Water Reactor Nuclear Power Plants)	Valid
NB/T 20500-2018	English	RFQ	ASK	3 days [Need to translate]	(PWR nuclear power plant insulation installation and acceptance technical regulations)	Valid

Standard ID	NB/T 20500-2025 (NB/T20500-2025)
Description (Translated English)	(Technical Specifications for Insulation Installation and Acceptance of Piping in Pressurized Water Reactor Nuclear Power Plants)
Sector / Industry	Energy Industry Standard (Recommended)
Date of Issue	2025-12-18
Date of Implementation	2026-06-18
Older Standard (superseded by this standard)	NB/T 20500-2018
Issuing agency(ies)	National Energy Administration