Standard Specification for Ferrocolumbium1

This standard is issued underneath the fixed designation a 550; the number right away following the designation shows the 12 months of authentic adoption or, inside the case of revision, the yr of last revision. More than a few in parentheses indicates the 12 months of remaining reapproval. A superscript epsilon (e) indicates a piece of writing trade because the last revision or reapproval.

Click below to get ASTM A 550 – 78 International standard

You can also get  ASTM A 543/A 543M – 93 International standard