GB 11887-2012: Jewellery -- Fineness of precious metal alloys and designation [including MODIFICATION 1]

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Scope

This Standard specifies the precious metals’ fineness range1), mark, test method, and
the designation method of precious metal jewellery.
This Standard is applicable to jewellery industry and the precious metal jewelleries
that are produced and marketed in domestic market. For precious metal ornaments, it
shall refer to this Standard.

Basic Data

Standard ID	GB 11887-2012 (GB11887-2012)
Description (Translated English)	Jewellery -- Fineness of precious metal alloys and designation [including MODIFICATION 1]
Sector / Industry	National Standard
Classification of Chinese Standard	Y88
Classification of International Standard	39.060
Word Count Estimation	8,835
Older Standard (superseded by this standard)	GB 11887-2008
Quoted Standard	GB/T 9288; GB/T 16552; GB/T 16553; GB/T 16554; GB/T 17832; GB/T 18781; GB/T 19720; GB/T 21198.6; GB/T 23885; GB 28480; QB/T 1689
Adopted Standard	ISO 9202-1991, MOD
Regulation (derived from)	National Standards Bulletin No. 28 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This Chinese standard specifies the scope of the purity of precious metal jewelry, stamp, measuring methods and precious metal jewelry naming method. This standard applies to the jewelry industry and domestic production and sale of precious metal jewelry.