In principle, the same principles apply to determining the authenticity of bars from around 50/100 g as for smaller bars. First, one examines the weight, dimensions and ideally the density. Because, especially with larger objects, there are often no standardized standard dimensions and therefore density measurement is often unavoidable.

If the density or the “pseudo-density” (dimensions & weight) is correct, many types of counterfeiting can be ruled out. As a result, only alloys that have the same density as the respective precious metal come into question as counterfeit materials.