|
|
|
|
 |
Products
introduction——Gold
power |
|
|
|
|
The product is golden color sea cotton gold or gold ingots,
having no to can see without the aid of instruments of mix
up the quality, can electric appliances appearance, chemical
engineering and precise metal alloy in manufacturing etc.
materials.
Chemistry composition
| Product type |
Au-1
|
Au-2
|
Au-3
|
| Chemistry
composition (%) |
Gold(≥) |
99.99
|
99.95
|
99.90
|
| impurity(≤) |
Ag
|
0.005
|
0.020
|
—
|
|
Cu
|
0.002
|
0.015
|
—
|
|
Fe
|
0.002
|
0.003
|
—
|
|
Pb
|
0.001
|
0.003
|
—
|
|
Bi
|
0.002
|
0.002
|
—
|
|
Sb
|
0.001
|
0.002
|
—
|
| total
(≤) |
0.01
|
0.05
|
0.10
|
Note:1)
The Au-1, card Au-2 number gold contains the deal with 100%
subtracts the miscellaneous quality of the form inside a row
solid measure the gold with the total of deal but get, card
Au-3 number contain deal is measurese the value directly.
2) technique standard GB/ T 4134-1994, need the square such
as have the special request to the product, can another the
travelling salesman settles.
|
|
