Designation: D70 - 0ge1 INTERNATIONAL Standard Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method)1 adoption or, in the case of revision, the year oflast revision. Anumber in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense. ' NOTE-Values in Table 1 were editorially corrected in July 2009. 1. Scope* 3. Terminology 1.1 This test method covers the determination of the relative 3.1 Definitions of Terms Specific to This Standard: density and density of semi-solid bituminous materials, asphalt 3.1.1 densitythe mass per unit volume of a material. cements, and soft tar pitches by use of a pycnometer. 3.1.2 relative density-the ratio of the mass of a given Nore 1An alternate method for determining the density of semi-solid volumeof amaterialtothemassof thesamevolumeofwater and solid bituminous materials is Test Method D3289.For materials which at the same temperature (see Note 2). are too fluid for use of this test method, use Test Method D3142 NoTe 2Relative density is also described as specific gravity. 1.2 The values stated in SI units are to the regarded as the standard. The values given in parentheses are for information 4. Summary of Test Method only. 1.3 This standard does not purport to address the safety 4.1 The sample is placed in a calibrated pycnometer. The pycnometer and sample are weighed, then the remaining concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and volume is filled with water. The filled pycnometer is brought to health practices and determine the applicability of regulatory the test temperature, and weighed. The density of the sample is limitations prior to use. calculated from its mass and the mass of water displaced by the sample in the filled pycnometer. 2. Referenced Documents 2.1 ASTM Standards:2 5. Significance and Use C670 Practice for Preparing Precision and Bias Statements 5.1 Values of density are used for converting volumes to for Test Methods for Construction Materials units of mass, and for correcting measured volumes from the D140 Practice for Sampling Bituminous Materials temperature of measurement to a standard temperature using D3142 Test Method for Specific Gravity, API Gravity, or Practice D4311. Density of Cutback Asphalts by Hydrometer Method D3289 Test Method for Density of Semi-Solid and Solid 6. Apparatus Bituminous Materials (Nickel Crucible Method) D4311 Practice for Determining Asphalt Volume Correction 6.1 Pycnometer, glass, consisting of a cylindrical or conical to a Base Temperature vessel carefully ground to receive an accurately fitting glass E1 Specification for ASTM Liquid-in-Glass Thermometers stopper 22 to 26 mm in diameter. The stopper shall be provided 2.2Other: withahole1.0to2.0mmindiameter,centrallylocatedin CRC Handbook of Chemistry and Physics reference to the vertical axis. The top surface of the stopper shall be substantially plane and have no chips, and the lower I This test method is under the jurisdiction of ASTM Committee D04 on Road surface shall be concave to allow all air to escape through the and Paving Materials and is the direct responsibility of Subcommittee D04.47 on bore.Theheightoftheconcavesectionshallbe4.0to18.0mm Miscellaneous Asphalt Tests. at the center. The stoppered pycnometer shall have a capacity Current edition approved July 1, 2009. Published June 2009. Originally approved of 24 to 30 mL and shall weigh not more than 40 g. Suitable in 1920. Last previous edition approved in 2008 as D70-08. DOI: 10.1520/D0070- pycnometers are illustrated in Fig. 1. 09E01 For referenced ASTM standards,visit theASTM website,www.astm.org,or 6.2 Water Bath, constant-temperature, capable of maintain- contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Stan