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Soils. Field test method for frozen soils with the use of cone penetration with temperature measurement and heating
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Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-010. Particular requirements for laboratory equipment for the heating of materials
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Mineral fertilizers. Methods for determination of potassium content
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Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-030. Particular requirements for equipment having testing or measuring circuits
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