FERRO SULPHIDE. S 48 Percent MIN., FE 40 Percent MIN., SI 2 Percent MAX., CU 0.05 Percent MAX., AS 0.2 Percent MAX.

CLASSIFICATION IS DETERMINED BY THE PROVISIONS OF GIRS 1 AND 6 OF THE COMBINED NOMENCLATURE AND THE TERMS OF HEADING 2830, 283090 AND 28309011