SUB-HEADING NOTES
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
| 1 |
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 |