Vacuum Pyknometer (2,000 Gram)

• Transparent lid for observation of sample.
• Supplied with volumetric lid and vacuum hose.
• Manufactured from strong, lightweight aluminum.

This smaller Vacuum Pycnometer is used in the Rice Test to determine the specific gravity of bituminous paving mixtures with maximum aggregate size up to 3/4” (19.1 mm). This 4.5 liter size will handle a 2,000 gram sample. The transparent lid on the pycnometer allows the operator to observe the bubble release from the asphalt sample during the test. A second volumetric lid, tapered with a capillary bore, is provided so the unit can be used as a volumeter for determining specific gravity of compacted bituminous mixtures. Vacuum is achieved by using the accessory aspirator or laboratory vacuum pump.