• "Tester Set" Comes in 1 set acid bottle + 1 piece gold touchstone (as shown in the picture)
• Perfect for keeping acid and suitable for making experiment laboratory.
• Can be used in gold assaying by using touchstone method.
• Gold Touchstone Dimension: 1.45cm x 7.70cm x 5.10cm
• Dimension of each acid bottle flask: 3.2cm (Diameter) x 5.5cm (Height)
• Dimension of acid bottle's wood block: 10cm (Length) x 5cm (Width) x 3.3cm (Height)
• May choose "Tester Set & Acid" option, it includes 1 set acid bottle + 1 piece gold touchstone + 1 bottle Gold Tester Solution 1 + 1 bottle Gold Tester Solution 2
• May choose "Stone + Acid Set" option, it includes 1 piece gold touchstone + 1 bottle Gold Tester Solution 1 + 1 bottle Gold Tester Solution 2
For testing gold:
1.Rub the item on touchstone until it leaves gold colour mark on the touchstone.
2. Pour Gold Tester Solution No. 1 on the gold colour marking. If it contains gold, the marking will remain on the stone. If the marking disappear, means it does not contains gold.
3. Then pour Gold Tester Solution No.2 on the gold colour marking, to see the fineness of gold.
• Used for gold assaying by using touchstone method.
• Please handle this solution with care. Use precautionary tools like masks and nitrile gloves when handle the solutions.