Russian standards PDF
A system of dry waterproofing building mixes based on cement binder for static joints (cracks) sealing in building structures. Specifications
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Refrigerating systems and heat pumps. Safety and environmental requirements. Part 3. Installation site and personal protection
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Refrigerating systems and heat pumps. Safety and environmental requirements. Part 4. Operation, maintenance, repair and recovery
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Plant quarantine. Guidelines on sample preparation for herbological diagnostics
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