GB/T 9288-1998
Replaced
DB44/T 653-2009
Active
Guangdong ProvinceLocal standards
DB44/T 653-2009 The method for measuring the thickness of the nacre in South Pearl
DB44/T 653-2009 The method for measuring the thickness of the nacre in South Pearl
Price:
$ 30
Basic Information
Standard Code:
DB44/T 653-2009
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Marine aquaculture and its products
ICS Name:
Jewelry
Publish Date:
2009-08-06
Implement Date:
2009-12-01
Pages:
4 pages
Scope
This standard specifies the definition of pearl layer thickness, the measurement method, the measurement rules, and the grading system. This standard is applicable to the measurement of pearl layer thickness in South China pearls.
Development Information
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GB/T 18043-2000
Replaced
GB/T 18043-2000 Precious metal jewellery content non-damaged test method—X-ray fluorescence spectrometry
GB/T 18303-2001
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GB/T 18303-2001 Color grading of polished diamond by visual matching
GB/T 11886-2001
Replaced