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United power system and isolated power systems. Operational dispatch management. Checking the compliance of the nominal tripping current of circuit breakers at voltage 110 kV and above with the calculated levels of short-circuit currents. Norms and requirements
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Drilling rotors and rotors for oil and gas wells repair. Basis parameters and dimensions
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Systems of water treatment for pharmaceutical use. Requirements for production, storage and distribution of purified water and water for injections
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Laundry products and household chemicals. General criteria for confirming the validity of environmental statements
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High efficiency air filters ЕРА, HEPA and ULPA. Part 1. Classification, performance testing, marking
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