TP-2801E1 asphalt penetration tester is designed and manufactured as per the T0604 "Asphalt Penetration Test" in the China Transportation Industry Standard JTG E20 "Highway Engineering Asphalt and Asphalt Mixture Test Regulations", GB/T 4985 "Penetration Determination of Petroleum Wax", GB/T 4509 "Determination of Penetration of Petroleum Pitch" (equivalent to ASTM D5), GB/T 269 "Determination of Penetration of Lubricating Grease and Petroleum Grease". It is mainly used to determine the penetration of asphalt, paraffin wax and lubricating grease.