|
Appearance
|
Slightly grayish white powder
|
|
Assay (as SnO2)
|
Min 99.8%
|
|
Lead (Pb)
|
Max 0.03%
|
|
Antimony (Sb)
|
Max 0.03%
|
|
Iron (Fe)
|
Max 0.02%
|
|
Bismuth (Bi)
|
Max 0.02%
|
|
Copper (Cu)
|
Max 0.02%
|
|
Arsenic (As)
|
Max 0.02%
|
|
Cobalt (Co)
|
Max 0.001%
|
|
Nickel (Ni)
|
Max 0.001%
|
|
Silver (Ag)
|
Max 0.001%
|
|
Cadmium (Cd)
|
Max 0.001%
|
|
Magnesium (Mg)
|
Max 0.001%
|
|
Manganese (Mn)
|
Max 0.001%
|
|
Zinc (Zn)
|
Max 0.001%
|