[Jewelry making - Article 00098] - Re: [Orchid] Best Gold Tester

[rona]

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    testing acids are cheap and reliable- I don't know of an acid for
    24k- but there are 10k, 14k, 18, & 22k as well as platinum- but
    testing for what fineness of platinum contenet is questionalble.
    there are lots of on line jewerly suppliers selling the acids. there
    are also expensive karet readers- not sure yet how they work or how
    reliable they are- has anybody used them? 

    The only problem I have using the acids is when testing a quantity of
    gold- it is not great to be breathing it in and not great getting
    drops on your skin- so the karet readers would offer relief from the
    fumes. best luck- rona
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