Standard Speciﬁcation for Pressure Vessel Plates, Alloy Steel, Nickel1
This general is issued below the ﬁxed designation a 203/a 203m; the wide variety immediately following the designation indicates the year of original adoption or, within the case of revision, the 12 months of remaining revision. more than a few in parentheses shows the 12 months of closing reapproval. a superscript epsilon (e) suggests a piece of writing exchange because the final revision or reapproval.
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