Abstract: The article presents the development of reference materials of gas permeability of rocks (imitators) with traceability to Get 210–2019: State Primary Standard of Units of Specific Adsorption of Gases, Specific Surface Area of Pores, Specific Volume of Pores, Dimension of Pores, Open Porosity, and Coefficient of Gas Permeability of Solid Substances and Fabricated Materials. At the time of the beginning of this study, in the system of metrological assurance of gas permeability coefficient measurements, there were only reference materials of an ...
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Topics: 
Process engineering
Composite material