JIS C9730-2-15-2004 家用和类似用途的自动电气控制装置.第2-15部分:用于锅炉设备的漂浮或电极电感器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 2-15: Particular requirements for automatic electrical water level sensing controls of the float or electrode-sensor type used in boiler applications