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Chapter 71

CBPL methods do not include proprietary information such as ASTM Standards.

Natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal and articles thereof; imitation jewelry; coin

Gold: Quantitative Analysis by Fire Assay

Test Methods for Chemical Analysis of Silver Brazing Alloys (ASTM E 56)

Test Methods for Chemical Analysis of Lead and Tin-Base Solder (ASTM E 46)

Gold Fineness in Articles of Jewelry

Last Modified: Oct 13, 2016