ASTM D8188 - 18

    Standard Test Method for Determination of Density and Relative Density of Asphalt, Semi-Solid Bituminous Materials, and Soft-Tar Pitch by Use of a Digital Density Meter (U-Tube)

    Active Standard ASTM D8188 | Developed by Subcommittee: D04.47

    Book of Standards Volume: 04.03


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    Significance and Use

    5.1 Values of density are used for converting volumes to units of mass and for correcting measured volumes at the measured temperature to a standard temperature using Practice D4311/D4311M.

    Note 2: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.

    1. Scope

    1.1 This test method covers the determination of the relative density and density of semi-solid asphalt materials, asphalt binders, asphalt cements, and soft-tar pitches by use of a digital density meter (U-tube).

    Note 1: Alternate methods for determining the density of semi-solid and solid asphalt materials and asphalt binders include Test Methods D3289, D3142/D3142M, and D70.

    1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. No other units of measurement are included in this standard, with the exception of temperature measurements. Units provided in degrees Fahrenheit are for reference purposes only. Temperatures given in degrees Celsius are to be considered standard.

    1.3 The between-laboratory reproducibility of this test method is being determined and will be available on or before June 2021. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes.

    1.4 This test method should not be applied to petroleum distillates other than asphalt and asphalt binders. For the determination of density of all other petroleum distillates and viscous oils, use Test Method D4052 or D5002, or ISO 12185.

    1.5 The text of this standard references notes and footnotes which provide explanatory material. These footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

    1.6 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.

    1.7 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D8 Terminology Relating to Materials for Roads and Pavements

    D70 Test Method for Density of Semi-Solid Asphalt Binder (Pycnometer Method)

    D140/D140M Practice for Sampling Asphalt Materials

    D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)

    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

    D3142/D3142M Test Method for Specific Gravity, API Gravity, or Density of Cutback Asphalts by Hydrometer Method

    D3289 Test Method for Density of Semi-Solid and Solid Asphalt Materials (Nickel Crucible Method)

    D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials

    D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

    D4311/D4311M Practice for Determining Asphalt Volume Correction to a Base Temperature

    D5002 Test Method for Density and Relative Density of Crude Oils by Digital Density Analyzer

    D6792 Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

    D7578 Guide for Calibration Requirements for Elemental Analysis of Petroleum Products and Lubricants

    D7961 Practice for Calibrating U-tube Density Cells over Large Ranges of Temperature and Pressure

    ISO Standard

    ISO 12185 Crude Petroleum and Petroleum ProductsDetermination of DensityOscillating U-Tube Method


    ICS Code

    ICS Number Code 91.100.50 (Binders. Sealing materials); 93.080.20 (Road construction materials)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/D8188-18

    Citation Format

    ASTM D8188-18, Standard Test Method for Determination of Density and Relative Density of Asphalt, Semi-Solid Bituminous Materials, and Soft-Tar Pitch by Use of a Digital Density Meter (U-Tube), ASTM International, West Conshohocken, PA, 2018, www.astm.org

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