Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications -- Part 1: Nickel systems (IEC 62133-1:2017) (english version)
Secondary cells and batteries containing alkaline or other non-acid electrolytes – Secondary sealed cells and batteries for portable applications -- Part 1: Nickel-cadmium ( IEC 61951-1:2017) (english version)
Secondary cells and batteries containing alkaline or other non acid electrolytes – Secondary sealed cells and batteries for portable applications -- Part 2: Nickel-metal hydride ( IEC 61951-2:2017) (english version)
