I.Brief Introduction  

• The instrument is apply to test ASTM D5 Needle penetration and ASTM D217/D1403 Cone penetration.

• The instrument is suitable to determine the penetration of highway bitumen, modified asphalt, as well as liquid petroleum asphalt or residue of emulsified asphalt after evaporation.

• The test condition is described as follows:The penetration of bituminous materials is expressed as the distance that a 100 g±0.05 g standard needle vertically penetrates into the sample without measurable fraction in 5 s at a constant temperature bath of 25±0.1 °C. 

• It is used for evaluating the consistency of asphalt. The larger the penetration is; the thinner and softer the asphalt is.

• The instrument can also be used for inspecting industry materials such as solid granule, powder, colloid, as well as food materials such as cream, glycine, etc.

• It has been widely used in the field of food industry, highway and traffic departments and other departments.

II.Technical Data
  1.Measurement range: 0 penetration~600 penetrations;
  2.Resolution: 0.1 penetration;
  3.Timing range: 0s~60 s, and the error is less than ±0.1 s.
  4.Heating power: 200 W;
  5.Temperature controlling accuracy: 25±0.1 °C (Note: the ambient temperature should not be higher than 20 °C);
  6.Data saved: 30 groups;
  7.Constant temperature bath: harden glass container;
  8.Stirrer: a magnetic stirrer;
  9.Standard needle: 2.5±0.05 g and it conforms to the requirements of GB/T4509 and T0604.
  10.Shifting holder: It has two ways to adjust the height of standard needle, so it is convenient to let the needle tip just touch the sample surface.
  11.Power supply: AC 220 V±10%, 50 Hz.