United power system and isolated power systems. Thermal power plants. Heat-power equipment. Pre-launch steam-oxy- gen cleaning, passivation and preservation of the steam-water tract. Norms and requirements
Occupational safety standards system. Additional respiratory personal protective equipment for works with radioactive and chemically toxic substances. General requirements and test methods
Information technology. Telecommunications and information exchange between systems. Interface connector and contact assignments for ISDN Basic Access Interface located at reference points S and T
Cable trunking and ducting systems for electrical installations. Part 2-2. Particular requirements. Cable trunking systems and cable ducting systems intended for underfloor and flush floor installations
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