Chinese legal requirements-Guangdong Newbest service co., Ltd. (NBTS)

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Chinese legal requirements

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

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