Versión Oficial En español - Acumuladores con electrolitos alcalinos u otros electrolitos no ácidos.Elementos recargables estancos portátiles. Parte 1: Niquel-Cadmio.
This part of IEC 61951 specifies marking, designation, dimensions, tests and requirements for portable sealed nickel-cadmium small prismatic, cylindrical and button rechargeable single cells, suitable for use in any orientation.