ASTM C559-16

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C559 − 16 An American National Standard
Standard Test Method for
Bulk Density by Physical Measurements of Manufactured
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Carbon and Graphite Articles
This standard is issued under the fixed designation C559; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 4.2 This test method can be used for quality and process
control, material characterization and description, and other
1.1 This test method covers the determination of the bulk
purposes.
density of manufactured articles of carbon and graphite of at
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least 500 mm volume. The bulk density is calculated to an
5. Preparation of Test Specimens
accuracy of 0.25 %, using measurements of mass and dimen-
5.1 Machine test specimens from the manufactured article
sions in air at 25 °C 6 5 °C.
in the form of a rectangular parallelepiped or a right circular
1.2 The values stated in SI units are to be regarded as
cylinder. The minimum mass of the specimen shall be 2000
standard. No other units of measurement are included in this
timesthesensitivityofthebalanceusedtoweighthespecimen,
standard.
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andthevolumeofthespecimenshallnotbelessthan500 mm .
1.3 This standard does not purport to address all of the
Theminimumdimensionofthespecimenshallbethelargerof:
safety concerns, if any, associated with its use. It is the
5.1.1 Ten times the length of the largest visible particle, and
responsibility of the user of this standard to establish appro-
5.1.2 2000 times the resolution of the device used for
priate safety and health practices and determine the applica-
measuring the dimension.
bility of regulatory limitations prior to use.
5.2 Duringthemachiningoperation,usenolubricanthaving
a boiling point above 100 °C. All corners, edges, and faces of
2. Referenced Documents
the specimen should be free of chips or gouges. Ensure that the
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2.1 ASTM Standards:
specimen is free of any residue from the machining operation.
IEEE/ASTM SI-10 Standard for Use of the International
Dry the specimen for a minimum of 2 h at 110 °C, and then
System of Units (SI) (the Modern Metric System)
allow it to cool to 25 °C 6 5 °C in a desiccator. The specimen
shall not be removed from the desiccator until immediately
3. Terminology
prior to weighing.
3.1 Definitions:
3.1.1 bulk density, n—in carbon and graphite technology,
6. Procedure
themassofaunitvolumeofmaterialincludingbothpermeable
6.1 Weigh the specimen to an accuracy of 0.05 % using a
and impermeable voids (and boron compounds in the case of
balance or scale. During the weighing operation, handle the
boronated carbon or boronated graphite) present in the material
specimen with soft-tipped tongs.
at room temperature.
6.2 Measure each dimension of the test specimen to an
4. Significance and Use accuracy of 0.05 %.
6.2.1 If the specimen is a rectangular parallelepiped, make
4.1 Bulk density as determined by this test method is a basic
four measurements of the length (longest dimension). Take
material property of importance in manufacturing and applica-
each measurement along the center of each of the four long
tion of carbon and graphite.
faces of the specimen. Measure the width and thickness at each
end and at two intermediate points along the length of the
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This test method is under the jurisdiction of ASTM Committee D02 on
specimen. Determine the mean of each dimension.
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
6.2.2 Ifthespecimenisarightcircularcylinder,measurethe
Subcommittee D02.F0 on Manufactured Carbon and Graphite Products.
length at four points, 90° apart on the periphery of the circular
Current edition approved Jan. 1, 2016. Published February 2016. Originally
end faces. Make two sets of diameter measurements. Each set
approved in 1968. Last previous edition approved in 2010 as C559 – 90 (2010).
DOI: 10.1520/C0559-16.
shall consist of four measurements, one at each end and two at
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
intermediate points along an axial line. These sets shall lie at
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
90° to each other. Determine the mean length and the mean of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. each of the two sets of diameter measurements.
*A Summary of Changes section appears at the end of this standard
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C559 − 16
7. Calculation standards befor
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