There are two common tests to determine the silver content in an alloy. X- ray testing is non-destructive but requires expensive equipment. X-ray 테스트를 위해 보석류를 실험실로 보내야합니다.. This test is relatively accurate on most silver items. The machine can be fooled by layered metals and some types of plating, so the accuracy is approximate. Assay testing is a destructive test that is more accurate. In this test, 적어도 .5 grams of metal are melted down so the alloyed elements and ratios can be accurately measured. Neither of these tests are a practical option for consumers looking for a quick test at home. 대신에, consumers are advised to buy silver from reputable manufacturers that are honestly disclosing details on their materials.