Standard Specification for Steel Castings, Carbon, for General Application1
This trendy is issued beneath the fixed designation a 27/a 27m; the wide variety right away following the designation suggests the 12 months of authentic adoption or, inside the case of revision, the yr of last revision. various in parentheses indicates the 12 months of remaining reapproval. a superscript epsilon (e) suggests an article alternate for the reason that closing revision or reapproval.
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