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Significance and Use
This test method is useful in characterizing pitches and asphalts as one element in establishing uniformity of shipments and sources of supply.
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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D61 Test Method for Softening Point of Pitches (Cube-in-Water Method)
D140 Practice for Sampling Bituminous Materials
D4296 Practice for Sampling Pitch
ICS Number Code 91.100.50 (Binders. Sealing materials); 93.080.20 (Road construction materials)
UNSPSC Code 30121602(Pitch)
ASTM D71-94(2009), Standard Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method), ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top