This trendy is issued beneath the ﬁxed designation A 1; The wide variety immediately following the designation suggests the 12 months of original adoption or, within the case of revision, the year of final revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
You can download free PSD file of ASTM-A1 Standard Speciﬁcation for Carbon Steel Tee Rails