Standard Specification for
General Requirements for Wrought Seamless Copper and
This standard is issued underneath the fixed designation b 251; the wide variety right now following the designation suggests the year of
original adoption or, within the case of revision, the yr of last revision. more than a few in parentheses indicates the year of remaining reapproval. a
superscript epsilon (e) indicates an editorial alternate for the reason that remaining revision or reapproval.
This popular has been permitted to be used through businesses of the branch of defense.
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