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System of national standards for quality of telecommunication services. Quality of services of local, long-distance and international telephone communication. Normative values for quality indices of telephone calls

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System of product-quality indices. Information electrical measuring systems. Nomenclature of indices

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Buses with the combined power units. General technical requirements

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Public catering services. Methods of laboratory quality control of products catering. Part 3. Methods of control of manufacturing processes of products of public catering

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Air transport. Safety management system of helicopter activity. Risk management. The standard guides on safety management system for services of airport activity. Main provisions

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Quality management systems. Fundamentals and vocabulary

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