NB/T 47013.13-2015: Nondestructive testing of pressure equipment - Part 13: Pulsed eddy current testing

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Scope

1.1 This Part of NB/T 47013 specifies the inspection methods and
evaluation rules for even wall thickness reduction of magnetic materials such
as carbon steel, low alloy steel used for in-use pressure equipment due to
corruption, erosion or mechanical damage, without excluding the cover layer.
1.2 This Part is applicable to the inspection of the substrate base material
wall thickness reduction of pressure equipment with cover layer and with the
following conditions.
a) the metal protective layer thickness is not greater than 1 mm;
b) for stainless steel or aluminium protective layer, the cover layer
thickness is not greater than 200 mm; for iron protective layer, the cover
layer thickness is not greater than 100 mm;
c) base material thickness range is 3 mm ~ 70 mm;
d) tube or pipe fitting diameter is not less than 50 mm;
e) base material temperature range is -196°C ~ 500°C.
1.3 The inspection of in-use pressure equipment without cover layer can
refer to this Part.

Basic Data

Standard ID	NB/T 47013.13-2015 (NB/T47013.13-2015)
Description (Translated English)	Nondestructive testing of pressure equipment - Part 13: Pulsed eddy current testing
Sector / Industry	Energy Industry Standard (Recommended)
Classification of Chinese Standard	H26
Word Count Estimation	14,149
Date of Issue	2015-04-02
Date of Implementation	2015-09-01
Regulation (derived from)	?Energy Bureau Announcement 2015 No. 3
Issuing agency(ies)	National Energy Administration