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Digital topographic maps. Classifying and encoding system for digital cartographic information. General requirements

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Tantalum and its oxides. Spectral method for determination of aluminum, vanadium, ferrum, calcium, silicon, magnesium, manganese, copper, nickel, niobium, tin, titanium, chromium and zirconium

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Plastics piping systems. Thermoplastic pipes and fittings for hot and cold water. Test method for the resistance of joints to pressure cycling

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Safety requirements for electrical equipment for measurement, control and laboratory use. Part 2-201. Particular requirements for control equipment

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Electrical steel. Methods of test for magnetic and electrical properties. Method for measurement of specific electric resistance by d.c. bridge

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Tin and lead babbits. Method for the determination of arsenic

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