Standard Speciﬁcation for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures1
This standard is issued beneath the ﬁxed designation a 671; the wide variety straight away following the designation shows the year of unique adoption or, within the case of revision, the yr of ultimate revision. Various in parentheses indicates the 12 months of ultimate reapproval. A superscript epsilon (e) suggests an article alternate since the ultimate revision or reapproval.
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You can also get ASTM A 668 A 668M – 04 International standard