Standard Penetrometer for Bitumen Testing - Used to decide grade of bitumen. The tests decide consistency of bitumen to grade. depths in units 1/10 of millimeter to which a standard needle having a standard weight will infiltrate vertically in a span of five seconds at a temperature of 25?C decides penetration for the degree. It comprises of a vertical column mounted on a base gave leveling screws. The head, together with dial plunger pole a cone (or needle) slides on a column and can be clipped at any coveted tallness. A rack and pinion and pointer gather gives fine change of needle or cone tip to test. It joins a grip instrument. Which makes perusing of entrance and ensuing resetting a straightforward and exact operation. The dial is graduated in 400 1/10 and the millimeter subdivisions and the needle pointer against figures makes a simple reading.Supplied with a bitumen infiltration needle, ring weight one every 50 gms. also, 100 gms. two specimen compartments. Embellishments: Penetration cone for observational estimation of infiltration of greasing up oil, oil jam and so forth..