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Water Rationalization Tools

Saudi Standards, Metrology and Quality Organization (SASO) implemented Water Rationalization program to set a minimum water flow rate for mixers, taps and ceramic appliances in order to rationalize the water consumption in the kingdom of Saudi Arabia.

SASO issued the Technical Regulation for “Water Rationalization Tools- M.A-156-16-04-06”, this regulation includes the following products:

Public Toilets Mixers.

Private Toilets Mixers (Basin Mixers).

Kitchen Mixers (sinks mixers).

Bidet Mixers.

Shower Mixers.


A handheld Bidet (Shattaf).

Shattaf Mixers.

Western Water Closets (toilets).

Eastern Water Closets.



METS Lab provides complete testing requirements of Water Rationalization Tools as per SASO.