Standard Practice for
Ultrasonic Contact Examination of Weldments1
This trendy is issued underneath the fixed designation e 164; the wide variety right now following the designation shows the year of
authentic adoption or, within the case of revision, the year of last revision. a number of in parentheses indicates the yr of ultimate reapproval. a
superscript epsilon (e) shows an article alternate for the reason that ultimate revision or reapproval.
This wellknown has been accepted to be used by way of companies of the branch of defense.
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