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State system for ensuring the uniformity of measurements. State service of standard reference data in the field of use of atomic energy. Standard reference data for atomic energy service. Classifiers of standard reference data on physical constants and properties of substances and materials for atomic energy service. Basic provisions
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Tungsten, molybdenum. General requirements for methods of chemical and spectral analysis
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Pipeline valves. Electric actuators. General specifications
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DC switches of voltage above 1000 V for traction substations and linear devices traction power railway. General specifications
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