Supports the following standards: ASTM D1883, AASHTO T193 The H-4156 loading press (load frame) uses a two-position mechanical jack to provide steady test speeds, as well as rapid travel of the platen for positioning of the sample. Overall dimensions: 18" x 12" x 34" (45.8 x 30.5 x 86.4cm). The following items in the chart below are included for testing CBR.