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Electrical apparatus for explosive gas atmospheres. Part 27. Fieldbus intrinsically safe concept (FISCO) and fieldbus non-incendive concept (FNICO)
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Radio-frequency cable, type PK 50-7-28. Specifications
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Clips for ball-socket couplings of line hardware and insulators. Specifications
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Electrostatics. Part 1. Electrostatic phenomena. Principles and measurements
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Aircraft batteries. Part 1. General test requirements and performance levels
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Secondary cells and batteries containing alkaline or other non-acid electrolytes. Mechanical tests for sealed portable secondary cells and batteries
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