ASTM D3142/D3142M-17 PDF Download

ASTM D3142/D3142M-17 is a standard test method that is used to accurately determine the density, specific gravity, or API gravity of cutback asphalts. This is important for converting measured volumes to volumes at a standard temperature of 15 °C or 60 °F. The standard also specifies that accurate determination is necessary for converting volumes to mass, as required in other ASTM tests on cutback asphalts.

The test method utilizes a glass hydrometer to measure the values at convenient temperatures. The measured values of density, specific gravity, and API gravity are then reduced to 15 °C or 60 °F using international standard tables. These values can be converted between different systems of measurement, allowing for measurements to be made in units of local convenience.

This test method specifically applies to cutback asphalts and provides more explicit procedures compared to the procedure outlined in Test Method D1298. It follows the definitions provided in Specifications D2026, D2027, and D2028. It is important to note that values corrected to 15 °C and 60 °F will be different since the two temperatures are not equal.