Russian standards PDF

Modifiers of organic-mineral origin of MB type for concretes, mortars and dry mixes. Specifications

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Green fodder. Specifications

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United power system and isolated power systems. Hydraulic and pumped storage power stations. Hydraulic engineering structures. Monitoring and assessment of technical condition during operation. Main provisions

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Information protection .Identification and authentication. Authentication assurance levels

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Aerostats and airships. Terms and definitions

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Aerostats and airships. General provisions

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