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Pureza del oro

LINGORO

La pureza del oro se suele expresar en partes por mil. Por ejemplo 995 (novecientos noventa y cinco) es oro puro al 995/1000, es decir, 99,5 %. 995 es la pureza más alta a la que se podía fabricar el oro en el caso de una buena entrega, pero para las aplicaciones de alta tecnología ahora es posible producir metales puros al 999,999 %.


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