Standard Speciﬁcation for Steel, Strip, High-Carbon, Cold-Rolled1
This general is issued underneath the ﬁxed designation a 684/a 684m; the quantity right away following the designation suggests the year of original adoption or, inside the case of revision, the 12 months of remaining revision. A range of in parentheses indicates the year of closing reapproval. A superscript epsilon (e) shows an article trade since the last revision or reapproval.
This trend has been authorized to be used by corporations of the branch of defense.
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You can also get ASTM A 683 A 683M – 99 International standard