ASTM D71-94(1999)

Standard Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)

SCOPE
1.1 This test method covers the determination of relative density by water displacement of hard pitches and asphalts with softening points above 70°C.  
1.2 The relative density of hard pitch and asphalt shall be determined, whenever possible, on homogeneous natural fragments free of cracks. The use of cast cubes is not recommended due to the difficulty of avoiding incorporation of air bubbles.  
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-Dec-1999
• ICS: 91.100.50 - Binders. Sealing materials
• ICS: 93.080.20 - Road construction materials
• 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 D71-94(2004) - Standard Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)
• Effective Date: 01-Nov-2004
• Referred By: ASTM D4383-21 - Standard Specification for Plowable, Raised Retroreflective Pavement Markers
• Effective Date: 10-Dec-1999
• Referred By: ASTM C990-09(2019) - Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants
• Effective Date: 10-Dec-1999
• Referred By: ASTM C990M-09(2019) - Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants (Metric) (Withdrawn 2024)
• Effective Date: 10-Dec-1999
• Referred By: ASTM C461-23 - Standard Test Methods for Mastics and Coatings Used With Thermal Insulation
• Effective Date: 10-Dec-1999
• Referred By: ASTM D4892-14(2019)e1 - Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)
• Effective Date: 10-Dec-1999
• Referred By: ASTM D2962-10(2019) - Standard Practice for Calculating Volume-Temperature Correction For Coal-Tar Pitches
• Effective Date: 10-Dec-1999
• Referred By: ASTM D4280-18 - Standard Specification for Extended Life Type, Nonplowable, Raised Retroreflective Pavement Markers
• Effective Date: 10-Dec-1999
• Referred By: ASTM D7280-20 - Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch by Stainless Steel Crucible Filtration
• Effective Date: 10-Dec-1999
• Referred By: ASTM D2318-20 - Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch
• Effective Date: 10-Dec-1999
• Referred By: ASTM D4074/D4074M-11(2022) - Standard Test Method for Bitumen and Aggregate Content of Bitumen-Aggregate Mixtures From Roofing Samples
• Effective Date: 10-Dec-1999

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
An American National Standard
Designation:D71–94 (Reapproved 1999)
Standard Test Method for
Relative Density of Solid Pitch and Asphalt (Displacement
Method)
ThisstandardisissuedunderthefixeddesignationD 71;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 5. Significance and Use
1.1 This test method covers the determination of relative 5.1 This test method is useful in characterizing pitches and
density by water displacement of hard pitches and asphalts asphaltsasoneelementinestablishinguniformityofshipments
with softening points above 70°C. and sources of supply.
1.2 The relative density of hard pitch and asphalt shall be
6. Apparatus
determined, whenever possible, on homogeneous natural frag-
6.1 Pan Straddle, suitable for use with an analytical bal-
mentsfreeofcracks.Theuseofcastcubesisnotrecommended
due to the difficulty of avoiding incorporation of air bubbles. ance.
6.2 Analytical Balance, equipped with a hook above the pan
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the and capable of weighing a 20-g specimen to 1 mg.
6.3 Water Bath, maintained at 25.0 6 0.2°C and provided
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- with mechanical stirring/circulation.
6.4 Thermometer, capable of measuring water temperature
bility of regulatory limitations prior to use.
of 25.0 6 0.2°C (or other suitable temperature measuring
2. Referenced Documents
instrument).
2.1 ASTM Standards: 6.5 Nichrome Wire, 0.127-mm (5-mL) diameter or
D 61 Test Method for Softening Point of Pitches (Cube-in- monofilament nylon fishing line of about the same diameter for
Water Method) attaching specimen to the balance pan hook.
D 140 Practice for Sampling Bituminous Materials
4 7. Bulk Sampling
D 4296 Practice for Sampling Pitch
7.1 Samples from shipments shall be taken in accordance
3. Terminology
with Practice D 140 or D 4296, and shall be free of foreign
3.1 Definition: substances. Thoroughly mix the sample before removing a
3.1.1 relative density—the ratio of a given volume of representative portion for the determination.
material at 25°C to the weight of an equal volume of water at
8. Test Specimens
the same temperature (specific gravity).
8.1 Select two fragments of the bulk sample weighing
4. Summary of Test Method
between 5 and 20 g each. Inspect the fragments carefully to
4.1 The sample is suspended from a thin wire and weighed, ensure the use of specimens free of cracks and other surface
first in air, then submerged in water at 25.0°C. The relative defects.
density is calculated from these weights. 8.2 If the nature of the material is such that specimens can
be cast without incorporation of air bubbles, follow the
preparation and casting directions in Test Method D 61. Cube
This test method is under the jurisdiction of ASTM Committee D-2 on 1
molds measuring a minimum of 12.7 mm ( ⁄2in.) per side or
Petroleum Products and Lubricantsand is the direct responsibility of Subcommittee
largercanbeused.Assemblethecubemoldssothatsolidcubes
D02.05.OFon Industrial Pitches.
with no perforations can be cast. A softening point cube mold
Current edition approved Nov. 15, 1994. Published January 1995. Originally
published as D 71 – 20 T. Last previous edition D 71 – 84 (1989).
base plate can be inverted to provide the required flat surface
Annual Book of ASTM Standards, Vol 05.01.
on which to assemb
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