This standard covers the requirements and methods of test for virgin zinc in the form of ingots. It is primarily utilized by metallurgists, procurement teams, and manufacturers to verify the purity and chemical composition of zinc intended for processes like hot-dip galvanizing, die-casting, alloy production, and dry battery manufacturing.
Specifies the requirements for different grades of zinc ingots for various industrial uses.
Quick Reference Values
Zn 99.995 (Special High Grade) minimum zinc content99.995%
Zn 99.995 maximum Lead (Pb) limit0.003%
Zn 99.995 maximum Cadmium (Cd) limit0.003%
Zn 98.50 (Prime Western) minimum zinc content98.50%
Zn 98.50 maximum Lead (Pb) limit1.25%
Practical Notes
Ensure the correct grade is selected for the specific application; Zn 99.995 (Special High Grade) is highly recommended for die-casting to avoid intergranular corrosion, whereas lower grades like Zn 98.50 may be acceptable for standard hot-dip galvanizing.
Visual inspection is required before chemical sampling to ensure the ingots are clean and free from slag, dross, dirt, and other foreign inclusions.