China National Standards

China Jewellery—Determination precious metal GB Standards List

  •  China "Jewellery—Determination precious metal" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 40114-2021 Jewellery—Determination of precious metal content—Difference method using inductively coupled plasma optical emission spectroscopy
    首饰 贵金属含量的测定 ICP差减法    		 China National Standards
    Jewellery—Determination precious metal
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