Description
The object is rubbed on a touchstone and the trace is evaluated with the corresponding test solution. The kit combines gold acids for 8, 14, 18 and 21 carat with platinum solution and a chromate-free silver test system.
Best for
Bench testing of gold, silver and platinum by trained users
Measurement method
Metallurgical touchstone assay with chemical test solutions
Important limitation
Chemical tests require protective handling, correct storage, surface abrasion and trained interpretation. Transport may be restricted by hazardous-goods rules.
Highlights
- Gold acids for 8, 14, 18 and 21 carat
- Includes platinum and chromate-free silver testing
- Complete touchstone workflow in a wooden case
- Suitable for professional and informed private use
Scope of delivery
- Gold acids: 8K, 14K, 18K and 21K (20 ml each)
- Platinum test acid (20 ml)
- Two-part silver test
- Touchstone and care product
- Pipette
- Wooden storage case and manual
Specifications
| Gold ranges | 8K / 333, 14K / 585, 18K / 750, 21K / 875 |
|---|---|
| Metals | Gold, silver and platinum |
| Method | Touchstone assay |
| Handling | Chemical-safety procedures required |
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