The UNS (Uniform Numbering System) requires that each specific metal grade or alloy composition receive a unique UNS number. Previous changes to the composition specifications for certain grades of zinc required that new UNS numbers be assigned, as reflected in this revision. New UNS numbers are underlined in red and obsolete numbers are crossed out in Table 1. Key words were added.
high grade zinc; prime western zinc; special high grade zinc; zinc; zinc metal ; Zinc--specifications; Zinc metal; High-grade zinc; Prime western zinc
Citing ASTM Standards
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