For appraisal and testing of gold, silver, platinum, brass, nickel and German silver. Wood case contains three acid bottles with ground glass stoppers and applicators, test stone, set of gold testing needles. Acid must be purchased locally.
56.700 Set includes nine gold testing needles
56.0806 Set includes five gold testing needles
56.748 Replacement wood case
Test Needles for Gold
Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.
56.705
Set of nine needles for 4, 6, 8, 10, 12, 14, 16, 18 and 20 karat gold
56.707
Set of five needles for 8, 10, 12, 14 and 18 karat gold
Test Needles for Silver and Gold
Needles and item to be tested are rubbed on test stones and treated with acid to determine match.
56.706
Set of four needles for 10, 14 and 18 karat gold plus silver
Test Stones
A dark stone on which needle and item to be tested are rubbed. Use with.
56.710
Measures 1 7/8¨ x 1 1/2¨ x 1/4¨ (48 x 38 x 6 mm)
**Specials**
Grobet USA™ products are
available worldwide
through
our international network
of authorized distributors.