ISO 19026:2015规定了安装在墙上的盥洗室冲水按钮和呼叫按钮的形状和颜色，以及它们与纸张分配器的布置。本国际标准仅适用于在公共卫生间（普通卫生间隔间和具有各种功能的卫生间隔间）的座便器墙壁上安装冲水按钮和/或呼叫按钮的情况，除了带有大纸架的卫生间，在那里很难在纸架上方放置冲水按钮和呼叫按钮，以及ISO 21542中两侧横向转移的类型厕所。

ISO 19026:2015 specifies shapes and colours of a flushing button and a call button of lavatory which are installed on the wall and their arrangement with a paper dispenser. This International Standard is only applicable in case of installing a flushing button and/or a call button on the wall of seat-type lavatory in public restrooms (general toilet compartments and toilet compartments with various functions) used by an unspecified large number of people, except restrooms with a big paper holder where it is difficult to place a flushing button and a call button above the holder, and Type A toilet with lateral transfer from both sides of ISO 21542.