NB/T 47013.8-2025: Nondestructive testing of pressure equipment - Part 8: Leak testing

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Scope

1.1 This document, as part of NB/T 47013, specifies methods for leak testing of pressure
equipment.
1.2 This document applies to the nondestructive leak testing of pressure equipment
during fabrication and in service; it may be used to locate leaks and measure leak rates.
1.3 The various testing methods and technical requirements specified in this document
are detailed in the respective Appendixes.

Basic Data

Standard ID	NB/T 47013.8-2025 (NB/T47013.8-2025)
Description (Translated English)	(Non-destructive Testing of Pressure Equipment - Part 8: Leak Detection)
Sector / Industry	Energy Industry Standard (Recommended)
Classification of Chinese Standard	H26
Classification of International Standard	77.040.20
Date of Issue	2025-12-18
Date of Implementation	2026-06-18
Older Standard (superseded by this standard)	NB/T 47013.8-2012
Issuing agency(ies)	National Energy Administration