Standard Speciﬁcation for Steel Castings, Austenitic Manganese1
This popular is issued underneath the ﬁxed designation a 128/a 128m; the number immediately following the designation suggests the yr of original adoption or, in the case of revision, the yr of last revision. various in parentheses indicates the 12 months of ultimate reapproval. a superscript epsilon (e) indicates an article trade because the ultimate revision or reapproval.
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