GOST R 8.921-2016 State system for ensuring the uniformity of measurements. Certified reference materials of natural gas magistral and substitute natural gas. Procedure of determining the metrological characteristics
GOST 8.315-1997 State system for enshuring the uniformity of measurements. Certified reference materials of composition and properties of substances and materials. Basic principles
GOST 8.578-2014 State system for ensuring the traceability of measurements. State hierarchy scheme for measuring instruments of the content of components in gaseous mediums
GOST R 8.776-2011 State system for ensuring the uniformity of measurements. Certified reference materials of composition of gas mixtures. General metrological and technical requirements
GOST R 8.921-2016 history
2016GOST R 8.921-2016 State system for ensuring the uniformity of measurements. Certified reference materials of natural gas magistral and substitute natural gas. Procedure of determining the metrological characteristics