ASTM D3142/D3142M-17
(Test Method)Standard Test Method for Specific Gravity, API Gravity, or Density of Cutback Asphalts by Hydrometer Method
Standard Test Method for Specific Gravity, API Gravity, or Density of Cutback Asphalts by Hydrometer Method
SIGNIFICANCE AND USE
5.1 Accurate determination of the density, specific gravity, or API gravity of cutback asphalts is necessary for the conversion of measured volumes to volumes at the standard temperature of 15 °C or 60 °F.
5.2 Similarly, accurate determination is necessary for converting volumes to mass as required in other ASTM tests on cutback asphalts.
5.3 Values corrected to 15 °C and 60 °F will be different because the two temperatures are not equal.
SCOPE
1.1 This test method covers the laboratory determination, using a glass hydrometer, of the density, specific gravity, or API gravity of cutback asphalts as defined in Specifications D2026, D2027, and D2028 (Note 1). Values are measured on a hydrometer at convenient temperatures, readings of density, specific gravity, and API gravity being reduced to 15 °C or 60 °F by means of international standard tables. By means of these same tables, values determined in one of the three systems of measurement are convertible to equivalent values in either system so that measurements may be made in the units of local convenience.
Note 1: This test method is applicable to cutback asphalts and in general follows, but provides more explicit routines than, the procedure outlined in Test Method D1298.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.
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.
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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.
Designation:D3142/D3142M −17
Standard Test Method for
Specific Gravity, API Gravity, or Density of Cutback Asphalts
1
by Hydrometer Method
This standard is issued under the fixed designation D3142/D3142M; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the laboratory determination,
C670 Practice for Preparing Precision and Bias Statements
using a glass hydrometer, of the density, specific gravity, or
for Test Methods for Construction Materials
API gravity of cutback asphalts as defined in Specifications
D140 Practice for Sampling Bituminous Materials
D2026, D2027, and D2028 (Note 1). Values are measured on a
D1250 Guide for Use of the Petroleum Measurement Tables
hydrometer at convenient temperatures, readings of density,
D1298 Test Method for Density, Relative Density, or API
specific gravity, and API gravity being reduced to 15 °C or
Gravity of Crude Petroleum and Liquid Petroleum Prod-
60 °F by means of international standard tables. By means of
ucts by Hydrometer Method
these same tables, values determined in one of the three
D2026 Specification for Cutback Asphalt (Slow-Curing
systems of measurement are convertible to equivalent values in
Type)
either system so that measurements may be made in the units
D2027 Specification for Cutback Asphalt (Medium-Curing
of local convenience.
Type)
D2028 Specification for Cutback Asphalt (Rapid-Curing
NOTE 1—This test method is applicable to cutback asphalts and in
general follows, but provides more explicit routines than, the procedure
Type)
outlined in Test Method D1298.
E1 Specification for ASTM Liquid-in-Glass Thermometers
E100 Specification for ASTM Hydrometers
1.2 Units—The values stated in either SI units or inch-
pound units are to be regarded separately as standard. The
3. Terminology
values stated in each system may not be exact equivalents;
therefore,eachsystemshallbeusedindependentlyoftheother. 3.1 Definitions of Terms Specific to This Standard:
3.1.1 API gravity—a function of specific gravity 15/15 °C
Combining values from the two systems may result in noncon-
formance with the standard. [60/60 °F], represented by the equation:
°API 5 @141.5/SG 15/15°C# 2 131.5 or
1.3 This standard does not purport to address all of the
°API 5 141.5/SG 60/60°F 2 131.5
@ #
safety concerns, if any, associated with its use. It is the
No statement of reference temperature is required since
responsibility of the user of this standard to establish appro-
15 °C [60 °F] is included in the definition.
priate safety, health, and environmental practices and deter-
3.1.2 density—the mass of material per unit volume. When
mine the applicability of regulatory limitations prior to use.
reporting results, explicitly state the density in units of mass
Specific precautionary statements are given in Section 7.
(kilograms) and volume (litres), together with the standard
1.4 This international standard was developed in accor-
reference temperature.
dance with internationally recognized principles on standard-
3.1.3 observed values—values observed at temperatures
ization established in the Decision on Principles for the
other than the standard reference temperature. Values observed
Development of International Standards, Guides and Recom-
at other temperatures are only hydrometer readings, and not
mendations issued by the World Trade Organization Technical
density, relative density (specific gravity), or API gravity.
Barriers to Trade (TBT) Committee.
3.1.4 specific gravity—the ratio of mass of a given volume
of a material at a specified temperature to the mass of an equal
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.47 on
2
Miscellaneous Asphalt Tests. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 15, 2017. Published January 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1972. Last previous edition approved in 2011 as D3142/D3142M – 11. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D3142/D3142M-17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D3142/D3142M−17
v
...
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: D3142/D3142M − 11 D3142/D3142M − 17
Standard Test Method for
Specific Gravity, API Gravity, or Density of Cutback Asphalts
1
by Hydrometer Method
This standard is issued under the fixed designation D3142/D3142M; 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 laboratory determination, using a glass hydrometer, of the density, specific gravity, or API
gravity of cutback asphalts as defined in Specifications D2026, D2027, and D2028 (Note 1). Values are measured on a hydrometer
at convenient temperatures, readings of density, specific gravity, and API gravity being reduced to 15°C15 °C or 60°F60 °F by
means of international standard tables. By means of these same tables, values determined in one of the three systems of
measurement are convertible to equivalent values in either system so that measurements may be made in the units of local
convenience.
NOTE 1—This test method is applicable to cutback asphalts and in general follows, but provides more explicit routines than, the procedure outlined
in Test Method D1298.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated
in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values
from the two systems may result in nonconformance with 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.
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:
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
D140 Practice for Sampling Bituminous Materials
D1250 Guide for Use of the Petroleum Measurement Tables
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by
Hydrometer Method
D2026 Specification for Cutback Asphalt (Slow-Curing Type)
D2027 Specification for Cutback Asphalt (Medium-Curing Type)
D2028 Specification for Cutback Asphalt (Rapid-Curing Type)
E1 Specification for ASTM Liquid-in-Glass Thermometers
E100 Specification for ASTM Hydrometers
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 API gravity—a function of specific gravity 15/15°C [60/60°F],15/15 °C [60/60 °F], represented by the equation:
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.47 on
Miscellaneous Asphalt Tests.
Current edition approved Dec. 15, 2011Dec. 15, 2017. Published January 2012January 2018. Originally approved in 1972. Last previous edition approved in 20052011
as D3142 – 05.D3142/D3142M – 11. DOI: 10.1520/D3142/D3142M-11.10.1520/D3142/D3142M-17.
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 ----------------------
D3142/D3142M − 17
°API 5 141.5/SG 15/15°C 2 131.5 or
@ #
°API 5 @141.5/SG 60/60°F# 2 131.5
No statement of reference temperature is required since 15°C [60°F]15 °C [60 °F] is included in the definition.
3.1.2 density—Thethe mass of material per unit volume. When reporting results, explicitly state the density in units of mass
(kilograms) and volume (litres), together with the standard reference temperature.
3.1.3 observed values—values ob
...
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