State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Hydrogen, Nitrogen, Oxygen, Carbon Oxide, Carbon Dioxide, Methane, Propane, Hexane. Procedure of determining the metrological characteristics
Information technology. International standardized profiles FVT2nn. Virtual terminal basic class. Register of control object type definitions. Part 8. FVT221 - forms FEICO (field entry instruction control object) No 1
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