SANS 1529-9-2008 饮用冷水水表．第9部分：对于与机械水表、电子水表以及电子预付费水量计量系统一起使用的电子指示器的要求
Water meters for cold potable water Part 9: Requirements for electronic indicators used with mechanical water meters, electronic water meters and electronic prepayment water measuring systems
Specifies the metrological requirements for electronic water meters and electronic indicators used with mechanical water meters and meters with mechanical measuring elements to indicate the volume of water delivered and also supplementary indications suc