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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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Leather. Physical and mechanical test methods for the determination of soiling. Part 1. Rubbing (Martindale) method
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State system for ensuring the uniformity of measurements. Indicating pressure gauges. Ordinary measuring instruments. Metrological requirements and test methods
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Metals and alloys. Rockwell hardness test under test low loads (using Super-Rockwell test)
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