In this Chapter the expression “refined lead” means metal containing by weight at least 99.9% of lead, provided that the content by weight of any other element does not exceed the limit specified in the following table:
TABLE – OTHER ELEMENTS |
|
Element |
Limiting content % by weight |
Ag |
Silver |
0.02 |
As |
Arsenic |
0.005 |
Bi |
Bismuth |
0.05 |
Ca |
Calcium |
0.002 |
Cd |
Cadmium |
0.002 |
Cu |
Copper |
0.08 |
Fe |
Iron |
0.002 |
S |
Sulphur |
0.002 |
Sb |
Antimony |
0.005 |
Sn |
Tin |
0.005 |
Zn |
Zinc |
0.002 |
Other (for example Te), each |
|
0.001 |