ASTM D2320-98

Standard Test Method for Density (Relative Density) of Solid Pitch (Pycnometer Method)

SCOPE
1.1 This test method covers the determination of density and relative density by pycnometer, and can be used for pitch that can be handled in fragments.
1.2 The values stated in SI units are to be regarded as the standard.
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.

General Information

• Status: Historical
• Publication Date: 09-Nov-1998
• ICS: 75.140 - Waxes, bituminous materials and other petroleum products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material

Relations

• Replaced By: ASTM D2320-98(2003) - Standard Test Method for Density (Relative Density) of Solid Pitch (Pycnometer Method)
• Effective Date: 01-Nov-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact
ASTM International (www.astm.org) for the latest information.
Designation: D 2320 – 98 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Density (Relative Density) of Solid Pitch (Pycnometer
1
Method)
This standard is issued under the fixed designation D 2320; 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.
1. Scope rately fitting glass stopper with a capillary tube 1.0 to 2.0 mm
in diameter.
1.1 This test method covers the determination of density and
6.2 Water Bath, maintained at 25.0 6 0.1°C and provided
relative density by pycnometer, and can be used for pitch that
with mechanical stirring.
can be handled in fragments.
6.3 Vacuum Pump or Aspirator, capable of producing a
1.2 The values stated in SI units are to be regarded as the
vacuum of 2.7 kPa (20 torr).
standard.
1.3 This standard does not purport to address all of the
NOTE 1—20 torr 5 20 mm Hg 5 2.66 kPa.
safety concerns, if any, associated with its use. It is the
6.4 Manometer, suitable for measuring the specified
responsibility of the user of this standard to establish appro-
vacuum.
priate safety and health practices and determine the applica-
6.5 Vacuum Desiccator with Guard.
bility of regulatory limitations prior to use.
6.6 Sieves, U.S. Standard 2.36-mm (No. 8) and 600-μm (No.
30) conforming to Specification E 11.
2. Referenced Documents
2.1 ASTM Standards:
7. Reagents and Materials
2
D 4296 Practice for Sampling Pitch
7.1 Wetting Agent, 0.1 g/mL Aerosol OT.
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
7.2 Wetting Agent, 0.1 g/mL BRU 35 (Alyoxyethylene
3
poses
dodecyl ether, detergent.
3. Terminology
8. Bulk Sampling
3.1 Definitions:
8.1 Samples from shipments shall be taken in accordance
3.1.1 density—the mass per unit of volume at a standard test
with Practice D 4296 and shall be free of foreign substances.
temperature.
Thoroughly mix the sample immediately before removing a
3.1.2 relative density—the ratio of the mass of a given
representative portion for the determination or for dehydration.
volume of the material at a standard test temperature to that of
an equal volume of water at the same temperature.
9. Dehydration
9.1 All bulk samples suspected of having free moisture shall
4. Summary of Test Method
be air-dried or oven-dried at 50°C in a forced-air oven before
4.1 The sample is weighed and its volume determined by
analyzing.
the mass of water displaced.
10. Preparation of Test Sample
5. Significance and Use
10.1 Crush a 50 to 100-g representative portion of the dry
5.1 Values of density and relative density are used for
pitch until all of it passes through the 2.36-mm (No. 8) sieve.
converting volumes to units of mass as required in other ASTM
Avoid grinding the pitch. Remove the fines by screening
standards and in sales transactions.
through the 600-μm (No. 30) sieve and use the pitch retained
on this sieve as the test sample. If desired, small lumps of pitch
6. Apparatus
may be used without crushing, provided the lumps pass the
6.1 Glass Pycnometer, capacity about 25 mL, with accu-
2.36-mm sieve and are retained on the 600-μm sieve. In either
case, follow the evacuation steps described in 12.2. In case of
1
dispute use the crushing method.
This test method is under the jurisdiction of ASTM Committee D-2 on
Petroleum Products and Lubricantsand is the direct responsibility of Subcommittee
D02.05.0F on Industrial Pitches.
11. Calibration of Pycnometer
Current edition approved Nov. 10, 1998. Published January 1999. Originally
11.1 Weigh the thoroughly clean, dry, and assembled pyc-
published as D 2320 – 64T. Last previous edition D 2320 – 97.
2
Annual Book of ASTM Standards, Vol 05.02. nometer to the nearest 0.5 mg and record the mass.
3
Annual Book of ASTM Standards, Vol 14.02.
1

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NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D 2320
11.2 Fill the pycnometer with freshly boiled distilled water
W 5 mass of sample (W − W ),
3 1
that has been cooled to about 20°C. Insert the stopper with a
W 5 mass of pycnometer,
1
rotary motion to secure a firm seat, making sure that no air is
W 5 mass of pycnometer filled with water at 25°C,
2
entrapped, then completely immerse the pycnometer in the W 5 mass of pycnometer with sample, and
3
W 5 mass of pycnometer with sample filled with water at
water bath at 25°C for a minimum of 30 min. Remove and
4
25°C.
wipe t
...