Used to determine the consistency of a bituminous sample under fixed conditions of load, time and temperature. The penetration is expressed in distance of tenths of millimeters vertically penetrated by a standard needle. The standard penetrometer has a sturdy aluminium base table with levelling screws, plated vertical rod, “micrometric vertical adjustment device”. The slider is brass made with free fall. The dial, graduated in 360° (division 0.1 mm.), has diameter of 150 mm. The penetrometer is supplied with stop and release push button, automatic zero set, micrometer adjustment, set of weights 50 and 100 g. penetration needle, brass sample cups dia. 55x35 mm and 70x45 mm. Dimensions: 220x170x410 mm. Weight: 11 kg