Gold Test Needles Set of 3 - 10K 14K and 18K Gold Test Needles

$39.95  $29.95
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Gold Test Needles Set of 3 - 10K, 14K, 18K gold needles included

Used with test stones and testing solutions to help determine the contents of gold and silver.

Stock #




Set of 3 (Includes: 10K, 14K and 18K gold needles)



Set of 4 (Includes: 10K, 14K, 18K gold and Silver needles)



Set of 5 (Includes: 8K, 10K, 12K, 14K and 18K gold needles)



Set of 5 (Includes: 10K, 14K, 18K, 22K gold and Silver  needles)


Using Test needles to determine the Karat of Gold

The test needles are used to compare the reaction of the test solutions to a known Karat of gold with the reaction to an unknown Karat gold sample.

  1. Find a spot on the piece you are testing and rub it on the test stone.
  2. Next to the mark from your test piece rub the test needle with the nearest karat that you think your test piece is.
  3. place a drop of solution with the nearest Karat rating that you think your test piece is to both marks at the same time.
    1. If the test item mark is disolved try a lower Karat solution (or the item is not gold)
    2. If the test mark and the needle mark colors do not match try another needle until it does.
  4. White and green gold react slower, but will still disolve or leave a brown mark after applying the solution.

Add to Cart:

  • Model: TES-803.00
  • Shipping Weight: 0.2lbs
  • 156 Units in Stock
  • Manufactured by: GTS

This product was added to our catalog on Wednesday 25 June, 2008.

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