GET 196-2023 State Primary Standard for the units of the mass

The need for developing metrological support for the measurement of gas components in metals and alloys and trace impurities in various industrial products (metallurgy, medicine, etc.) is analyzed. The authors examine the needs of industries for the development of more sensitive measurement methods and procedures, as well as an expanded nomenclature of reference materials having a lower error (uncertainty) of the certified characteristic than the certified characteristic error of currently existing type-approved composition reference materials. Reference materials developed for use in state regulation should be traceable to the primary standards of mass (molar) fraction and mass (molar) concentration: GET 196-2023 State Primary Standard for the units of the mass (molar) fraction and mass (molar) concentration of components in liquid and solid substances and materials based on spectral methods; GET 176-2019 State Primary Standard for the units of mass (molar, atomic) fraction and mass (molar) concentration of components in liquid and solid substances and materials based on coulometry; GET 217-2018 State Primary Standard for the units of mass fraction and mass (molar) concentration of inorganic components in aqueous solutions based on gravimetric and spectral methods; GET 208-2019 State Primary Standard for the units of mass (molar) fraction and mass (molar) concentration of organic components in liquid and solid substances and materials based on liquid and gas chromatography-mass spectrometry with isotope dilution and gravimetry.