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Programmable controllers. Part 6. Functional safety
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Pipeline valves. Gate valves of thermoplastics materials. General specifications
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State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring instruments of variable temperature of water medium in the range of pulsation amplitudes of temperatures within 0,01 - 3 K at the pulsation frequencies from 0,005 to 50 Hz, at background temperature from 270,15 to 380,15 K and at water flow velocity from 0,5 to 20 m/s
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Membrane flexible roll bituminous waterproofing. General specifications
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