Standard Guide for
Defining and Rating the Microstructure of High Carbon
This standard is issued under the fixed designation A 892; 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 892 – 88 (Reapproved 2001)pdf free
Click here to download Astm A 891 – 98 (Reapproved 2003)Pdf Free Download