Abstract
The article discusses the methods for testing products made of precious metal alloys, focusing in particular on the approximate method on the touchstone.
Authors Aleksandra Górkiewicz-Malina - Regional Assay Office in Kraków (Okręgowy Urząd Probierczy w Krakowie)
The article discusses the methods for testing products made of precious metal alloys, focusing in particular on the approximate method on the touchstone.