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Measurement procedures for operational control of instruments for activity measurement
Document status: Active
Auxiliaries for lamps. d.c. or a.c. supplied electronic step-down converters for filament lamps. Performance requirements
Document status: Active
Switching devices for railway traction network and power substations earthing. General specifications
Document status: Active
Cables, wires and cords. Method of control of re-winding strength
Document status: Active
Water-tube boilers and auxiliary installations. Part 12. Requirements for boiler feedwater and boiler water quality
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