Specific gravity method to identify the purity of gold and platinum

There are many methods for identifying the purity of precious metals such as gold, platinum, and silver. The ancient methods are empirical identification and sampling identification. The empirical identification method has poor reliability; the sampling identification method affects the appearance of gold jewelry and even destroys the beauty of gold jewelry. At present, pawn shops, gold shops, banks, precious metal recycling and other fields generally use the specific gravity measurement method called the specific gravity method to identify the purity of gold and platinum. It can determine the authenticity and gold content of gold jewelry in a few seconds and is a non-destructive test. Therefore, it is a fast, effective and reliable method for identifying gold jewelry.

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