Russian standards PDF
Agricultural machinery. Transport and loading facilities. Methods of operational and technological assessment
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Explosive atmospheres. Part 20-2. Material characteristics. Combustible dusts test methods
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Explosive atmospheres. Part 39. Intrinsically safe systems with electronically controlled spark duration limitation
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Pipeline valves. Drives of rotary action. Connecting dimensions
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Multiple split-system air-conditioners and air-to-air heat pumps. Testing and rating for performance
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Refractory products. Basic requirements for methods of thermal shock resistance determination
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