Standard Specification for
50 Nickel-50 Iron Powder Metallurgy (P/M) Soft Magnetic
This standard is issued under the fixed designation A 904; 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 Astm A 904 – 04 pdf free download
click here Astm A 903/A 903M – 99 (Reapproved 2003) pdf free download