JIS C9730-2-16-2004 家用和类似用途的自动电气控制装置.第2-16部分:家用或类似用漂浮型自动电水位感应控制装置的特殊要求
Automatic electrical controls for household and similar use -- Part 2-16: Particular requirements for automatic electrical water level operating controls of the float type for household and similar applications