Russian standards PDF
Molded bolster beam of a three-axle bogies of cars. Specifications
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Transporter cars. Requirements to structural straight and dynamic qualities
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Drinking water. Prepared conditioned water for alcoholic beverages. Determination of pH by potentiometry
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Prepared (corrected) water for the manufacture of alcoholic beverages. Determination of the content of calcium, magnesium, sodium, potassium, ammonium ions by ion chromatography
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Refrigerating systems and heat pumps. Valves. Requirements, testing and marking
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