6 Gold Testing Acid Jewelry Test Stone 10k 14k 18k 22k Platinum Silver w/Needles

Description

6 PACK GOLD, SILVER & PLATINUM TESTING SOLUTIONS
GENUINE
FRESH
JSP ACIDS
Kit Includes (1) bottle of each: 10K, 14K, 18K, 22K, Silver and Platinum Acids (
.5oz )
plus
(1)
2" Testing Stone (Size may vary between 2x1.5 and 2x3)
(1) 5 Prong Gold Testing Needles 8k, 10k 12k 14k 18k
Gold testing via acid solutions are a classic way of testing gold items for their karat values. This method is best used on scrap gold to be smelted due to the destructive nature of the testing, but can be used on gold pieces to be worn if the testing if done in an inconspicuous spot.
PLEASE NOTE: Gold testing acids are made using NITRIC ACID that can harm the skin. Please exercise caution when using this method of testing, including proper protective eye wear and gloves. Nitric Acid can burn the skin and leave stains.
Procedures for Testing Gold, Platinum and Silver:
To test for the karat value of gold, platinum and silver, you will need the following materials and tools:
Black acid testing stone that is washed thoroughly with water prior to each test OR a needle file
Acids
Reference Gold - Either Gold Testing Needles or Verified Gold Pieces
Testing for 10K, 12K and 14K:
Scratch or Rub the piece onto the test stone, leaving a visible deposit of gold on the stone. Next to this position, scratch the appropriate needle (10, 12, or 14K) - if you do not have needles you can use a gold item that has a known karat value. Place a drop of the appropriate acid (same solution as the needle/gold item you have used) on the stone where the gold deposits are. If the gold is the same karat or higher, the acid will not affect the gold marks. If the gold piece is of a lower karat, the scratched deposit will dissolve and eventually disappear while the mark from the needle will stay.
When testing for potential gold plated items such as heavy necklaces and earrings, use a metal file to make a slight gouge in the piece. Place a drop of acid (the acid should match the karat value of the gold on the piece) onto the gouge. If the item is gold-plated, the acid will slowly dissolve the metal underneath. If the item is pure gold, no reaction should occur.
By repeated trial, the karat of the gold pieces can be determined to a close approximation.
(Caution: Many objects are marked 14K, but were fabricated prior to 1982 when it was legal to mark items 14K, but in reality the gold was 13.5K When testing 13.5K gold the 14K solution will not dissolve the scratch, but will make it lose its brightness and will turn it into a yellow-rusty color)
Testing for 18K
Repeat the steps from above and apply 18K acid. Any gold that is less than 18K will disappear in less than 30 seconds. Gold that remains on the stone is 18K or higher.
Testing for 20K and 24K
Repeat the steps from above. Apply one drop of 22K acid to area. The material that starts to disappear first has a lower karat value (20K), while the gold that stays is 22K-24K gold.
Testing for Platinum
Scratch the test piece on the stone and apply one drop of Platinum Testing Acid to the application on the stone. If the material is platinum, it should keep it's white, bright color.
Testing for White Gold
The same procedure and Testing Acid for platinum can be used for 18K white gold . The material on the stone should start changing to a light bronze color in about three minutes. For 14K white gold, the material on the stone should disappear in 15 seconds.
Testing For Silver
Place a drop of acid on the object to be tested.
Color Results:
Fine silver .999 =  bright red
.925 silver = dark red
800 silver = brown
500 silver = green
GOLD TESING NEEDLES:
Use these test needles to compare acid reactions with gold items to be tested.  Choose a karat needle, rub or scratch the needle against a test stone, and make a rubbing or scratch with the item to be tested next to it.  Place a drop of testing acid across both marks, and carefully observe the reaction to the acid.  If the scratch or rubbing made by the item being tested reacts the same as the test needle scratch or rubbing, you could infer that the karat of the item being tested is the same as the test needle.  If the item being tested dissolves quicker than the comparison test needle mark, the gold content of the item being tested may be a lower karat than the test needle used.  If the item being tested dissolves slower than the comparison test needle mark, the item being tested may have a higher karat than the test needle used.
Please note this kind of gold testing is entirely subjective and requires careful observation and practice to master.
NOTE: We are an authorized distributor of JSP.
JSP is the only manufacturer for all gold testing acids in the United States. If you purchase any acids in the U.S. with another brand name, it is inauthentic. Therefore, they may not perform as expected.
Because our acids are authentic, we can guarantee they are sealed, fresh, and that we rotate our stock frequently.
CHECK OUT MORE ITEMS FROM OUR STORE
SHIPPING
CONTINENTAL US BUYERS:
All orders placed before 3pm on a business day (Monday - Thursday excluding Holidays) will ship same or next day. Any order placed Friday-Sunday will be processed the following Monday.
We promise a maximum handling time of 2 days for any order.
(If an unforeseen delay occurs, you will be notified)
INTERNATIONAL BUYERS:
Please inquire about additional shipping costs. Any extra shipping fees must be covered by the buyer.
Any customs fees (duties and taxes) charged by your country are the sole responsibility of the buyer.
Most international orders will ship USPS Priority Mail International
RETURNS
GENERAL RETURN POLICY
If you are not satisfied with the item(s) purchased from us, you may return your item(s) in original condition for a refund within 30 days of
receipt
after contacting us. No returns will be accepted for any reason after the 30-day period.
Items returned in unused, original condition, will be refunded in full. However,
restocking fees may apply
to discretionary returns or returns that arrive back not in the original conditions sent.
Returned merchandise must include all original packaging, along with included contents and accessories, bonus items, documents or paperwork, and Proof of Purchase in order for the full refund to be honored.
Please read the entire product description. Items that do not fall within the manufacturer's return or exchange policies cannot be accepted for returns or refunds.
The customer is responsible for shipping costs on any returned merchandise.
There will be no refunds or exchanges for used gold testers or any testing liquids (gold testing liquid, acids, R.I. liquid, gel refills).
INTERNATIONAL BUYERS:
Please remember, that return shipping fees are buyer's responsibility.
IMPORTANT: Please be aware that we are not responsible for any item that we do not receive or returned merchandise that is not accordance with these terms.
DAMAGED/DEFECTIVE MERCHANDISE:
If you receive a damaged, defective, or incorrect item, contact us within 2 days. If you receive merchandise with extensive damage to its packaging upon arrival, please refuse the order and contact us immediately. In such an event, we recommend that you contact the shipper immediately to report the damaged goods.
WARRANTY:
All warranties are offered solely by the manufacturer. If you want to return an item more than 14 days after you received it from us, you will need to contact the manufacturer, which we can assist you with.