Standard Practice for
Preparing Coke Samples for Microscopical Analysis by
This standard is issued under the fixed designation D 3997; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the 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.
1.1 This practice covers laboratory procedures for the
preparation of granular samples of coke for examination with
a reflected light microscope. The samples prepared are used for
identifying and quantifying the textural components in coke.
This practice does not apply to the preparation of oriented lump
specimens of coke for structural analysis.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards: 2
D 121 Terminology of Coal and Coke
D 346 Practice for Collection and Preparation of Coke
Samples for Laboratory Analysis
D 5061 Test Method for Microscopical Determination of
Volume Percent of Textural Components in Metallurgical
E 11 Specification for Wire Cloth and Sieves for Testing
3.1 Definitions—For additional definitions of terms used in
this practice, refer to Terminology D 121.
3.1.1 briquette, n—a cylindrical block composed of granulated coal or coke particles compressed and embedded with an
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