ASTM B237 Standard Specification for Refined Antimony has been revised to B237-20
This specification covers refined antimony in ingot, pig, or cake form. Refined antimony shall be supplied in commercial standard forms in Grade A and Grade B. The grades of refined antimony shall be produced by any smelting and refining process from ore or recycled materials to meet the chemical requirements of this specification. The refined antimony shall conform to the required chemical composition of arsenic, sulfur, lead, and others. The antimony shall be reasonably free from surface corrosion or adherent foreign material.
CONTINUE READING ON www.astm.org