Standard Specification for
Zinc-Coated Steel Strand for Messenger Support of Figure 8
This standard is issued under the fixed designation A 640; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last 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.
Click below to download Astm A 640 – 97 (Reapproved 2002)e1 pdf free
Click here to download Astm A 638/A 638M – 00 Pdf Free Download