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The Japanese Standards Organization (JSA) has published standards intended for metals used in jewelry.

The standards are:

  • JIS H 1322:2017 Magnesium and magnesium alloys — Method for spark discharge atomic emission spectrometric analysis”
  • JIS H 2150:2017 Magnesium ingots”
  • JIS H 4000:2014/AMENDMENT 1:2017 Aluminium and aluminium alloy sheets, strips and plates (Amendment 1)”

All standards were published on March 21, 2017.

Source1 Source2 Source3


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