Standard Specification for
Pressure Vessel Plates, Carbon Steel, High-Strength
This preferred is issued underneath the fixed designation a 455/a 455m; the wide variety immediately following the designation indicates the year
of authentic adoption or, in the case of revision, the year of final revision. a variety of in parentheses indicates the 12 months of closing reapproval.
a superscript epsilon (e) indicates an editorial exchange since the final revision or reapproval.
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