STATE PRIMARY STANDARD OF THE UNITS OF THE DISPERSE PARAMETERS OF AEROSOLS, SUSPENSIONS, AND POWDERED MATERIALS

摘要

An analysis is made of the use of measuring instruments for obtaining the disperse parameters of aerosols, suspensions, and powder materials and their metrological assurance is considered. The State primary standard for the disperse parameters is described together with its purpose, its operating principles, and its technical and metrological characteristics.