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Chimneys. Requirements for metal chimneys. Part 1. Building components for chimneys
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Zirconium containing refractory materials and products. Methods for determination of phosphorus pentoxide
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State system for ensuring the uniformity of measurements. Second class reference line gauges and fifth accuracy class working line gauges. Verification procedure
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Butadiene-methylstyrene SKMS-30ARKM-27 and butadiene-styrene SKS-30ARKM-27 synthetic rubber. Specifications
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Low voltage systems. Cable systems. Home automation system «Smart Home». Lighting control systems. General requirements
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