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Product Options
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Using the corresponding test acid, our
selection of 10k, 14k, 18k, 22k, silver, and platinum test acid will help
jewelry buyers and sellers to accurately determine the karat value of their gold
and to determine the purity of silver. Supplied in sturdy plastic bottles
maximizes safety and allow the user to easily squeeze out a drop at a time.
Procedures for testing
Gold, Platinum, and Silver
Materials
To test for the karat value of
gold, platinum, and silver, you will need the following materials and tools:
Separate tests are applied for
each type of metal, as identified and described below.
To Test For 10k, 12, 14k
Scratch the gold piece to be
tested on the stone. Next to this position, scratch the appropriate needle (10,
12, or 14k). Place a drop of the appropriate acid on the stone where the gold
was rubbed off. If the gold is the same karat or higher, the color of the
scratch mark for the gold piece will appear the same as the mark from the
needle. If that gold piece is a lower karat, the scratched deposit will become
fainter and eventually disappear.
To Test For 18k
Scratch the test piece on the
stone and apply 18k acid. Any gold that is less that 18k will disappear in less
than 30 seconds. Gold that remains on the stone is 18k or higher.
To Test For Platinum
Scratch the test item on the stone
and apply platinum acid. If the material is platinum, it should keep its white,
bright color.
The same procedure can be used for
18k white gold. The material on the stone should start changing to a light
bronze color in about 3 minutes.
For 14k white gold, the material
on the stone should disappear in 15 seconds.
To Test For Silver
Place a drop of acid on the object
to be tested.
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90% to 100% silver will show a
creamy color
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77% to 90% silver will show a gray
color
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65% to 75% silver will show a light
green color
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Gold acid testing kit is used to figure out the karat content of gold in jewelry and watches.
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Use with testing acids and chemicals to determine the carat content of gold, silver and platinum. Test your jewelry and watches.
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These clear glass bottles comes with a glass stopper that doubles as an applicator and it is the perfect container for watchmakers and jewelers to store their metal testing chemicals in. This is a great container to have at your workbench.
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Hand held jewelry and watch metal detector. Use on a ferrous and non ferrous metals.
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10K, 14K and 18K gold testing needles are used to help correctly identify the Karat value of your gold jewelry or watch.
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8K, 10K, 12K, 14K and 18K gold testing needles are used to help correctly identify the Karat value of your gold jewelry or watch.
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Product Reviews
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