GOLDANALYTIX GOLDSCREENPEN Bedienungsanleitung Seite 28

There is no individual non-destructive method which can give you a reliable answer to
whether the tested precious metal is genuine or not. If anybody tells you something else, this
person is definitely not honest or does not know it better! The reason is that any physical
property (i.e. conductivity, density, sound, etc.) of any precious metal can often be imitated
relatively easily with certain materials. However, materials – especially for precious metals –
which are identical in two or more properties, are significantly more difficult or almost
impossible to find (if, as seen above, the density corresponds, there are only a few possibilities
left - and those are e.g. identified by their current conductivity). This is also true vice versa: In
case of having the same conductivity, the density for example will be different. We know for
instance about PAMP-gold bars made of a copper-steel alloy plated with a very thin layer of gold
leading to an almost identical conductivity like pure gold. These counterfeits must be examined
thoroughly with other methods (e.g. by their differing thickness or width).
Please also have a look at our website www.gold-analytix.com in order to get further
information about the correct procedure with the non-destructive tests of precious metals.
Absolute certainty, especially about the exact composition, can only be achieved with a
destructive, total chemical analysis.
Please don't be deterred by this information - the GoldScreenPen detects most of the current
counterfeits of bullion metals if you compare the conductivities. For example, the current
frequently and very well faked ¼, ½ and 1 ounce tungsten bars and coins are easily identified.
We want to point out the conscientious handling of the interpretations of the results.
Irregular and immobile objects: Another big advantage of the GoldScreenPen is the opportunity
to measure irregular shaped / individual, metallic objects. One typical example is the
differentiation of high-quality and silver plated cutlery: High-quality silverware (hallmarks 800-
999, i.e. 80-99.9% silver content) can be easily distinguished from hotel silverware of classes A
(hallmarks 90/100/110; basic material is nickel silver, brass or other copper alloys) and B (e.g.
hallmarks 60 or 80; different basic materials) due to their significant higher conductivity range
(800: ca. 42 MS/m, 999: ca. 62 MS/m; vs. 5-25 MS/m for hotel silverware; see tables in the
appendix). The GoldScreenPen as a mobile device enables a punctual measurement of immobile,
metallic specimen like heavy and large scrap metal objects at scrap yards.
A further field of application is the distinction of high-quality pewter and cheap imitations of
zinc.
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