Standard Speciﬁcation for Copper Alloys in Ingot Form1
This popular is issued underneath the ﬁxed designation b 30; the number right away following the designation suggests the year of original adoption or, inside the case of revision, the year of last revision. a variety of in parentheses indicates the yr of final reapproval. a superscript epsilon (e) suggests an article exchange for the reason that ultimate revision or reapproval.
this widespread has been permitted to be used via agencies of the department of defense.
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