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Shield box viewing windows. Types, construction and dimensions
Document status: Active
Gate-type shut off valves for steam electric stations. Types and main parameters
Document status: Active
Electric power supply systems of aircrafts and helicopters. General requirements and norms of quality of electric energy
Document status: Withdrawn
Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods
Document status: Active
Insulating materials. Methods for determining the effects of ionizing radiation
Document status: Active
Luminaries. Part 2-11. Particular requirements. Aquarium luminaries
Document status: Active