Hardness Laboratory is one part of Division of Mechanics and Acoustics, National Institute of Metrology (NIM) of China. The laboratory staff comprises of five members: two senior engineers, two engineers and a technician. The main task of the lab is to research hardness metrological techniques and stipulates the hardness metrological regulations in order to insure the accuracy of realization of hardness values. Eleven hardness standards have...

There is no ongoing project.

  • Develope A Rockwell Hardness Standard Machine

    This machine is a Rockwell hardness standard machine, the force is generated by standard force sensor and motor-screw, not by weight. Its measures much faster than the conventional standard hardness machines.The measurement rang: Rockwell scales...

International Cooperation

  • Hardness Lab has participated in and will participate in the following hardness key comparision:

    1. International Key Comparison of Rockwell hardness (1998-1999)

    2. International Key Comparison of Vickers hardness (2002)


National Measurement Standards and CMCs

There is no National Measurement Standards and CMCs.



  • 86-10-64524626 He Li
  • head of Hardness laboratory
  • hel@nim.ac.cn

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