Standard Speciﬁcation for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service1
This preferred is issued below the ﬁxed designation a 234/a 234m; the range straight away following the designation indicates the yr of authentic adoption or, in the case of revision, the 12 months of final revision. more than a few in parentheses shows the 12 months of last reapproval. a superscript epsilon (e) shows a piece of writing change for the reason that ultimate revision or reapproval.
This popular has been permitted to be used with the aid of companies of the branch of defense
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