Russian standards PDF
Dry building leveling plaster mixes based on gypsum binder. Specifications
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Optics and photonics. Microscopes. Slides. Part 1. Dimensions and optical properties
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Refrigeration systems and heat pumps. Pressure equipment. Part 1. Vessels. General requirements
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Refrigeration systems and heat pumps. Pressure equipment. Part 2. Piping. General requirements
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Information technology. Biometrics. Biometric performance testing and reporting. Part 1. Principles and framework
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Ventilation for buildings. Сentral air conditioner. Rating and performance for units, components and sections
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