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<p>[QUOTE=&quot;Bronwen, post: 9574083, member: 5833&quot;][ATTACH=full]460632[/ATTACH]</p><p><br /></p><p>Every time the topic of testing precious metals with acid comes up I read eagerly.&nbsp; I have still never tried it myself, feeling I don&#039;t know enough.&nbsp; However, in this particular case, why would you conclude your new 18K acid is defective because it is stronger &amp; dissolves the silver streak in a way that the older, weaker acid does not?&nbsp; After all, it is meant for testing gold, a much less interactive metal than silver.&nbsp; Maybe hang on to your old 18K acid as a silver test.[/QUOTE]</p><p><br /></p>

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