ASTM D2320-98(2017)
(Test Method)Standard Test Method for Density (Relative Density) of Solid Pitch (Pycnometer Method)
Standard Test Method for Density (Relative Density) of Solid Pitch (Pycnometer Method)
SIGNIFICANCE AND USE
5.1 Values of density and relative density are used for converting volumes to units of mass as required in other ASTM standards and in sales transactions.
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 standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Designation: D2320 − 98 (Reapproved 2017)
Standard Test Method for
Density (Relative Density) of Solid Pitch (Pycnometer
1
Method)
This standard is issued under the fixed designation D2320; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 Thistestmethodcoversthedeterminationofdensityand 4.1 The sample is weighed and its volume determined by
relative density by pycnometer, and can be used for pitch that the mass of water displaced.
can be handled in fragments.
5. Significance and Use
1.2 The values stated in SI units are to be regarded as
5.1 Values of density and relative density are used for
standard. No other units of measurement are included in this
convertingvolumestounitsofmassasrequiredinotherASTM
standard.
standards and in sales transactions.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Apparatus
responsibility of the user of this standard to establish appro-
6.1 Glass Pycnometer, capacity about 25mL, with accu-
priate safety, health, and environmental practices and deter-
rately fitting glass stopper with a capillary tube 1.0mm to
mine the applicability of regulatory limitations prior to use.
2.0mm in diameter.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
6.2 Water Bath, maintained at 25.0°C 6 0.1°C and pro-
ization established in the Decision on Principles for the
vided with mechanical stirring.
Development of International Standards, Guides and Recom-
6.3 Vacuum Pump or Aspirator, capable of producing a
mendations issued by the World Trade Organization Technical
vacuum of 2.7kPa (20torr).
Barriers to Trade (TBT) Committee.
NOTE 1—20torr=20mm Hg=2.66kPa.
2. Referenced Documents
6.4 Manometer, suitable for measuring the specified
2
2.1 ASTM Standards:
vacuum.
D4296Practice for Sampling Pitch
6.5 Vacuum Desiccator with Guard.
E11Specification forWovenWireTest Sieve Cloth andTest
6.6 Sieves, U.S. Standard 2.36mm (No. 8) and 600µm
Sieves
(No.30) conforming to Specification E11.
3. Terminology
7. Reagents and Materials
3.1 Definitions:
3.1.1 density—themassperunitofvolumeatastandardtest 7.1 Wetting Agent, 0.1g⁄mLAerosol OT.
temperature.
7.2 Wetting Agent, 0.1g⁄mL BRU 35 (Alyoxyethylene do-
3.1.2 relative density—the ratio of the mass of a given
decyl ether, detergent.
volume of the material at a standard test temperature to that of
8. Bulk Sampling
an equal volume of water at the same temperature.
8.1 Samples from shipments shall be taken in accordance
1 with Practice D4296 and shall be free of foreign substances.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Thoroughly mix the sample immediately before removing a
SubcommitteeD02.05onPropertiesofFuels,PetroleumCokeandCarbonMaterial.
representativeportionforthedeterminationorfordehydration.
Current edition approved Oct. 1, 2017. Published November 2017. Originally
approved in 1964. Last previous edition approved in 2012 as D2320–98 (2012).
9. Dehydration
DOI: 10.1520/D2320-98R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
9.1 Allbulksamplessuspectedofhavingfreemoistureshall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
be air-dried or oven-dried at 50°C in a forced-air oven before
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. analyzing.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D2320 − 98 (2017)
10. Preparation of Test Sample 13. Calculation
10.1 Crush a 50g to 100g representative portion of the dry 13.1 Calculate the relative density of the pitch as follows:
pitch until all of it passes through the 2.36mm (No. 8) sieve.
spgr 5 W 2 W /@ W 2 W 2 W 2 W # (1)
~ ! ~ ! ~ !
3 1 2 1 4 3
Avoid grinding the pitch. Remove the fines by screening
throughthe600µm(No.30)sieveandusethepitchretainedon
5W/@W 2 ~W 2 W !#
4 2
this sieve as the test sample. If desired, small lumps of pitch
where:
may be used without crushing, provided the lumps pass the
W = mass of sample (W − W ),
3 1
2.36mm sieve and are retained on the 600µm sieve. In either
W = mass of pycnometer,
1
case, follow the evacuation steps described in 12.2. In case of
W = mass of pycnometer filled with water at 25°C,
2
dispute use the crushing method.
W = mass of pycnometer with samp
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2320 − 98 (Reapproved 2012) D2320 − 98 (Reapproved 2017)
Standard Test Method for
Density (Relative Density) of Solid Pitch (Pycnometer
1
Method)
This standard is issued under the fixed designation D2320; 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
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 standard. No other units of measurement are included in this 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D4296 Practice for Sampling Pitch
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Terminology
3.1 Definitions:
3.1.1 density—the mass per unit of volume at a standard test temperature.
3.1.2 relative density—the ratio of the mass of a given volume of the material at a standard test temperature to that of an equal
volume of water at the same temperature.
4. Summary of Test Method
4.1 The sample is weighed and its volume determined by the mass of water displaced.
5. Significance and Use
5.1 Values of density and relative density are used for converting volumes to units of mass as required in other ASTM standards
and in sales transactions.
6. Apparatus
6.1 Glass Pycnometer, capacity about 25 mL, 25 mL, with accurately fitting glass stopper with a capillary tube 1.01.0 mm to
2.0 mm 2.0 mm in diameter.
6.2 Water Bath, maintained at 25.025.0 °C 6 0.1°C0.1 °C and provided with mechanical stirring.
6.3 Vacuum Pump or Aspirator, capable of producing a vacuum of 2.7 kPa (20 torr).2.7 kPa (20 torr).
NOTE 1—20 torr = 20 mm Hg = 2.66 kPa.20 torr = 20 mm Hg = 2.66 kPa.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved Nov. 1, 2012Oct. 1, 2017. Published November 2012November 2017. Originally approved in 1964. Last previous edition approved in 20082012
as D2320–98(2012).D2320 – 98 (2012). DOI: 10.1520/D2320-98R12.10.1520/D2320-98R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D2320 − 98 (2017)
6.4 Manometer, suitable for measuring the specified vacuum.
6.5 Vacuum Desiccator with Guard . Guard.
6.6 Sieves, U.S. Standard 2.36-mm2.36 mm (No. 8) and 600-μm (No. 30) 600 μm (No. 30) conforming to Specification E11.
7. Reagents and Materials
7.1 Wetting Agent, 0.10.1 g g/mL ⁄mL Aerosol OT.
7.2 Wetting Agent, 0.10.1 g g/mL ⁄mL BRU 35 (Alyoxyethylene dodecyl ether, detergent.
8. Bulk Sampling
8.1 Samples from shipments shall be taken in accordance with Practice D4296 and shall be free of foreign substances.
Thoroughly mix the sample immediately before removing a representative portion for the determination or for dehydration.
9. Dehydration
9.1 All bulk samples suspected of having free moisture shall be air-dried or oven-dried at 50°C50 °C in a forced-air oven before
analyzing.
10. Preparation of Test Sample
10.1 Crush a 5050 g to 100-g100 g representative portion of the dry pitch until all of it passes through the 2.36-mm2.36 mm
(No. 8) sieve. Avoid grinding the pitch. Remove the fines by screening through the 600-μm600 μm (No. 30)
...
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