Measuring the natural consistency of bituminous materials based on the length of a standard needle in terms of tenths of a millimeter that penetrates the bitumen sample vertically under specified load, time, and temperature conditions is called the degree of penetration.
This device is used to measure the penetration of solid or quasi-solid bituminous materials. Needles, cups, and other conditions that are described in the standard method, allow to measure the penetration up to 500.
First, the sample is melted, then cooled under controlled condition. Next, the penetration of the bitumen sample is measured by using a special and standard needle and a penetrometer device.
See the Standards and Instructional Videos section for learning “How the Parsian Technology Group Devices Work”.
