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State system for ensuring the uniformity of measurements. Measurements of liquids and gases flow rate and quantity by means of orifice instruments. Part 4. Venturi tubes. Technical requirements
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State system for insuring the uniformity of measurements. State primary special standard and national chain of traceability for volumetric and mass oil flow metering instruments
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Information technology. Security techniques. Information security incident management
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Accessories for product of light industry. Marking, packing, transportation and storage
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