Silver |
Ag-1: The content of Gold is above 99.99%, the total
content of Bi, Cu, Fe, Pb, Sb, Au, C and S is below 0.01%.
Ag-2: The content of Gold is above 99.95%, the total content
of Bi, Cu, Fe, Pb, Sb, Au, C and S is below 0.05%.
Ag-3: The content of Gold is above 99.90%, the total content
of Bi, Cu, Fe, Pb, Sb, Au, C and S is below 0.10%.
Note: Technical standard GB/T 4135-1989. |
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