Standard Test Method for Ductility of Oriented Electrical Steel1
This preferred is issued underneath the ﬁxed designation a 721/a 721m; the number at once following the designation shows the year of original adoption or, inside the case of revision, the 12 months of remaining revision. A number in parentheses shows the 12 months of ultimate reapproval. A superscript epsilon (e) suggests an article alternate since the ultimate revision or reapproval.
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