NB/T 47013.11-2023: Nondestructive testing of pressure equipment - Part 11: X-ray computed radiographic testing

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Scope

1.1 This document specifies the digital radiographic testing technology and quality
grading requirements for the fusion welding joints of pressure-bearing metallic pressure
components of pressure-bearing equipment. The metal materials used to make welding
joints include steel, copper and copper alloys, aluminum and aluminum alloys, titanium
and titanium alloys, nickel and nickel alloys.
1.2 This document is applicable to the digital radiographic testing of butt joints and butt
welds (hereinafter referred to as "butt welds") of plates and tubes, in the manufacture,
installation, in-service testing of pressure-bearing components of pressure-bearing
equipment.
1.3 The imaging device applicable to this document is a digital detector.
1.4 The radiation sources applicable to this document are X-ray sources and Ir192 and
Se75 ��-ray sources, where the maximum tube voltage of the X-ray machine does not
exceed 600 kV.
1.5 The digital radiographic testing of welded joints of pressure-bearing equipment
supports and structural parts, as well as butt welds of inserted and placed pipe corner
joints (hereinafter referred to as "pipe seat corner welds") can make reference to this
document.

Basic Data

Standard ID	NB/T 47013.11-2023 (NB/T47013.11-2023)
Description (Translated English)	Nondestructive testing of pressure equipment - Part 11: X-ray computed radiographic testing
Sector / Industry	Energy Industry Standard (Recommended)
Classification of Chinese Standard	H26
Classification of International Standard	77.040.20
Word Count Estimation	39,39
Date of Issue	2023-10-11
Date of Implementation	2024-04-11
Older Standard (superseded by this standard)	NB/T 47013.11-2015
Issuing agency(ies)	National Energy Administration