Precision measurements of the particle size distribution of powder materials based on state primary standard for the units of disperse parameters of aerosols, suspensions and powder materials GET-163

In this article the problem of lack of specialized reference base and national standards in the sphere of additive technologies, particularly for the equipment and methods used in production, control of properties and the quality of powder materials is designated. The existing methods and instruments for measurement of particle size distribution and morphology of powders are considered and also the solution of this problem with use of the technical realization applied in the State primary standard for the units of disperse parameters of aerosols, suspensions and the powder materials GET-163 is proposed. Get-163 provides reproduction, storage and transmission of particle size units in aerosols, suspensions and powdery materials in the range from 0.001 to 2000 μm, counting concentration of particles in aerosols and suspensions in the range from 103 to 1012 m-3, mass concentration of aerosol particles in the range from 0.001 to 10,000 mg/m3, electrophoretic mobility of particles in the range from - 2⋅10-7 to + 2⋅10-7 m2/(V⋅s), zeta potential of particles in the range from -150 to + 150 mV.