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Regulatory requirements:
GB 28480-2012 Limits of harmful elements for ornaments
Specification and nomenclature for the purity of precious metals in jewelry
Test criteria:
Jewelry -- Determination of nickel release -- Spectrometric method,
Jewelry -- Determination of nickel content -- Flame atomic absorption spectrometry
GB/T 28485-2012 Coated jewelry -- Determination of nickel release -- Wear and corrosion simulation method
Jewelry -- Determination of harmful elements -- Fluorescence spectrometric method,
Jewelry -- Determination of harmful elements -- Spectrometric method,
GB/T 28019-2011 Jewelry -- Determination of hexavalent chromium -- Diphenylcarbonic dihydrazine spectrophotometric method
Inspection Service
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