JJG 818-2018: Magnetic and Eddy Current Measuring Instrument for Coating Thickness

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Scope

This Regulation specifies the first inspection, subsequent inspection, and in-
service inspection of magnetic (magneto-resistive and magnetic-driven) and
eddy current measuring instrument for coating thickness (hereinafter referred
to as thickness measuring instrument).

Basic Data

Standard ID	JJG 818-2018 (JJG818-2018)
Description (Translated English)	Magnetic and Eddy Current Measuring Instrument for Coating Thickness
Sector / Industry	Metrology and Measurement Industry Standard
Classification of Chinese Standard	A52
Classification of International Standard	17.040
Word Count Estimation	18,111
Date of Issue	2018-12-25
Date of Implementation	2019-06-25
Older Standard (superseded by this standard)	JJG 818-2005
Quoted Standard	GB/T 4956-2003; GB/T 4957-2003
Regulation (derived from)	Natural Resources Department Announcement No. 7 of 2019
Issuing agency(ies)	State Administration for Market Regulation
Summary	This standard is applicable to the first verification, subsequent verification and in-use inspection of magnetic (magnetoresistive and magnetic) coating thickness gauges and eddy current cladding thickness gauges (hereinafter referred to as thickness gauges).