Pictograms on how to use Japanese toilets have been registered as a global standard in a step aimed at making such signs more familiar to the growing number of foreign tourists visiting the country.

The International Organization for Standardization has recognized six kinds of pictograms – showing instructions on which buttons to press when operating a high-tech Japanese toilet.

The pictograms, designed by an industrial body of toilet makers, include those for “strong flush,” “bidet” and “raise/lower the lid.”

As high-tech Japanese toilets are becoming increasingly popular overseas, industry experts hope that now the Japan-proposed pictograms have become a global standard, domestic manufacturers of such toilets with water spray functions will be able to enter overseas markets.

In line with the international standard, Japan’s Ministry of Economy will also modify the Japanese Industrial Standards for the pictograms within this year.