Watch the reaction — the colour change reveals the karat. Testing acids are corrosive. Use in a ventilated area, wear gloves and eye protection, and always neutralise after testing. Keep out of reach of children.
eBay
Gold Testing Kit Gold Testing Stone Jewelry Tool 10K 14K 18K 22K Acid Tester Kit with Acid Gold Detecting Equipment Gold Testers
Aliexpress UK
4 reagents to test your metals: 9, 14, 18, 24 carat gold Be sure to carefully read the instructions provided and the precautions for use before handling. Notice and sheet also downloadable free of charge from our site. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/protective equipment P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if the victim wears them and they can be easily removed. Continue to rinse P310 Immediately call a POISON CENTER/doctor/... P321 Specific treatment (see ... on this label). P403+P233 Store in a well-ventilated area. Keep the container tightly closed. EUH phrases: EUH071 Corrosive to the respiratory tract. Contains: nitric acid <30% and hydrogen chlo.
eBay
Gold Testing Kit Gold Testing Stone Jewelry Tool 10K 14K 18K 22K Acid Tester Kit with Acid Gold Detecting Equipment Gold Testers
Aliexpress UK
Diamond Selector II Gold Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED for diamond, sapphire, ruby, crystal, agate, jade, gems multi gemstone precious stones hardness test tool, Diamond Selector II V2.
eBay
1200g (0.01g) Accuracy Precious Metal Gold Densitometer Platinum True False Tester Silver K Gold Density Purity Tester
Aliexpress UK
If you are undecided about the product. Usage:Diamond Jewelry testing. 1 x machine （not include 9v battery）. We will reply you within 24- 48 hours. We will be happy to resolve any issues you may have in a cordial and friendly manner.
eBay
TLF GEMORO AuRACLE Portable Gold Tester LED Display 6K to 24K Karat & Pt High-Precision Gold Platinum Tester
Aliexpress UK
9ct gold testing fluids will react as follows It can be used as a spot on test - just place a drop of the solution on tested item and observe the reaction. 925 Silver testing solution changes colour from orange as follows.
eBay
MDJ-600K 600g Electronic Densimeter Density Tester Gold Purity Tester for Platinum Palladium K Gold
Aliexpress UK
10ml 9ct Gold Tester Spot On Testing Solution. 9ct gold testing fluids will react as follows It can be used as a spot on test - just place a drop of the solution on tested item and observe the reaction.
eBay
4Pcs Gold Purity Test Kit Stone Tester Portable Jewelry Testing Kit Accurate Metal Tester Tools for Jewelry Silver Gold Platinum
Aliexpress UK
Best quality. We can normally resolve any situation. Safe & Secure.
eBay
Gold Seller GEMORO KEE Electric Gold Tester Pen Professional Karat Meter 10K 14K 18K 22-24K Gold and Platinum Purity
Aliexpress UK
Clear Results: Real gold remains visible on the surface, while fake materials may dissolve or change color. Gold Testing Stone Benchmark – Jewelry Purity Test Tool for Gold & Silver. Easy to Use: Simply apply a drop of testing solution on the stone to observe results.
eBay
Practical Professional Gold Tester Acid Kit Gold Testing Touchstone Gold Detecting Testing Tool Set
Aliexpress UK