The UNS (Uniform Numbering System) requires that each specific metal grade or alloy composition receive a unique UNS number. The composition of the Prime Western grade-recycled zinc in this specification requires that a new UNS number be assigned, as reflected in this revision. The new UNS number is underlined in red and the obsolete number is crossed out in Table 1.
prime western grade-recycled zinc; prime western zinc; PWG-R; recycled zinc; secondary zinc; zinc; zinc metal;
Citing ASTM Standards
[Back to Top]