BS EN IEC 60051-2:2021 Direct acting indicating analogue electrical measuring instruments and their accessories. Special requirements for ammeters and voltmeters
2021BS EN IEC 60051-2:2021 Direct acting indicating analogue electrical measuring instruments and their accessories. Special requirements for ammeters and voltmeters
1990BS 89-2:1990 Direct acting indicating analogue electrical measuring instruments and their accessories - Specification for special requirements for ammeters and voltmeters
BS EN IEC 60051-2:2021 Direct acting indicating analogue electrical measuring instruments and their accessories. Special requirements for ammeters and voltmeters was changed to BS 89-2:1990 Direct acting indicating analogue electrical measuring instruments and their accessories - Specification for special requirements for ammeters and voltmeters.