Kit contains...

• 1/2 oz. bottle 10K testing acid.
• 1/2 oz. bottle 14K testing acid.
• 1/2 oz. bottle 18K testing acid.
• 1/2 oz. bottle 22K testing acid.
• 1/2 oz. bottle Silver testing acid.
• 1/2 oz. bottle Platinum testing acid.
• 2.25"x2.25" Testing Stone.
• Instructions

KIT INSTRUCTIONS:

TESTING GOLD AND PLATINUM

Using Pre-Mixed Acids with a Test Stone
• Rub the jewelry on the test stone using four firm strokes (two forward and two back) so that a noticeable
streak of metal is on the stone.
• Apply a drop of the pre-mixed acid to the center of the streak.
• If the metal streak noticeably changes color or disappears, then the metal is less than the karat of the test
acid.
• If the metal streak changes color slightly, then it has the same karat as the test acid.
• If the metal streak does not change at all, then it has a higher karat than the test acid.
For example...
When using a 14K test acid, a 12K gold streak will exhibit a large color change or completely disappear, a
14K gold streak may have a very slight color change, and if the gold is higher than 14K it will not change
at all.
TESTING SILVER
• Scratch the article with a file and apply a drop of the pre-mixed acid.
• If it turns green, it is plated.
• If turns a a cloudy cream, it is sterling or better.
• Most Mexican silver generally contains less than 90% fine silver.
TESTING PLATED OR FILLED GOLD
Using Pre-Mixed Acids
• Find a place on the piece of jewelry where you can file a small groove without ruining the jewelry - the
reasoning is to penetrate the thin surface of plated metal (if it is plated). Try testing behind a link of a chain
if you can. It is fairly common to use karat gold for clasps on chains that are only plated with gold.
• Apply a drop of pre-mixed test acid in the small groove that you filed.
• Observe the color change if any and compare same as stone test. Most jewelry pieces have areas of
wear that can be good places to test. Sometimes the wear is enough to remove any plating and testing
these areas withoutfiling can confirm that the jewelry is a lower karat than the test acid.
• If no color change, file a small groove and try again to be sure.
STERLING SILVER JEWELRY - .925
Silver gradually softens at room temperature. Other metals are added to form alloys that less susceptible to
scratching and marring with the most common being copper. The result is sterling, which is 92.5 percent
silver and 7.5 percent copper (hence the name 925 sterling silver)
GOLD FILLED JEWELRY - GF
Gold filled is a process of bonding a thin layer of gold to a base metal core, usually brass. Gold filled has
an actual layer of gold, giving it more value than plated.
KEEP THESE CHEMICALS IN A SAFE COOL AND DRY AREA.
KEEP AWAY FROM THE REACH OF CHILDREN.

Packaging may vary.