New Progress in particle size analysis of nanomaterials with a wide range of applications in the field of high cardiac powder technology industry, defense, medicine and other contact angle measurement, particle measurement technology will lower measurement limit, wide measurement range, measurement accuracy and precision good reproducibility other direction. Therefore, the particle measurement technology requirements are also increasing. Looking at the various particle measurement methods and techniques, to meet the higher requirements of particle size analysis, light scattering method, based on the Brownian motion of the particle measurement methods such as particle size and mass spectrometry analysis methods will be more complete and more widely used. To suit the needs of the development of nanotechnology, particle size analysis methods nanomaterials gradually become an important part of the particle size analysis. Currently, nanomaterials for particle size analysis method is mainly dynamic light scattering particle size analysis and photon correlation spectroscopy, the measurement of the smallest particle size of 20nm and can reach 1nm. Statistical analysis of secondary particle size of nanomaterials particle system, according to the principle of division of the more advanced three typical methods are: high-speed centrifugal sedimentation method, laser particle size analysis and particle size analysis of ultrasonic power. Laser particle size analysis focused their analysis of different particle size ranges, it is divided into light diffraction and dynamic light scattering. Diffraction mainly for micron, submicron particles; scattering law aimed at nanometer particle size analysis of submicron particles. Electric ultrasonic particle size analysis method is the latest in analytical methods, mainly grain size analysis of high concentration system. Particle size analysis of nanomaterials is characterized by multi-temperature analysis contact angle measurement, particle size analysis of a high concentration of the main system. Particle size analysis of the characteristics of nanomaterials are more analytical methods to obtain the equivalent diameter, horizontal comparison is not between each other. Each analysis methods are applicable to a certain range, and sample conditions, should choose the appropriate analysis method based on the actual situation. Glass contact angle measurement, contact angle, ShengDing instruments provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) strong, credible, in Dongguan, Guangdong specialized instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead ShengDing instrument and you hand into the brilliant, for a better future!