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Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and to -165 °C. Part 1. General
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State system for ensuring the uniformity of measurements. Frequency and/or time standards. Methods for assessing basic metrological characteristics using signals transmitted by global navigation satellite
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Fiberglass reinforced thermosetting plastic pipes. Determination of resistance to the external pressure
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Electricity metering equipment (a.c.). Particular requirements. Digital meters
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Powertrack systems. Part 21. Particular requirements for powertrack systems intended for mounting on walls and ceiling
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