Standard Test Method for
Determining the Relative Degree of Oxidation in Bituminous
Coal by Alkali Extraction1
This standard is issued under the fixed designation D 5263; 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 D 5263 – 93 (Reapproved 2001) pdf free download