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some precious metals processors have even resorted to drilling or cutting bars to verify integrity. however a simple ultrasonic test can quickly and reliably locate inserts with no need to drill cut or otherwise alter the bar. combined with xrf surface testing the processor can be confident of the purity and integrity of their gold.
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learn how to test gold & silver at home with these 5 proven methods. these methods for testing gold & silver will confirm the authenticity of your precious metals. just about all bullion investors worry about counterfeits. those concerns are magnified when someone is buying for the first time. stories about fake coins from asia and gold bars
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portable gold testing machine. high end measurement system xan 500 was developed specifically for high precision analysis of gold silver and other precious metals as required in the field of gold mining industry hallmarking and assaying office. for such applications the new fischerscope® xray xan® 500 which employs xray fluorescence
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