ISO 31600:2022

This document specifies requirements for a water efficiency labelling programme for plumbing products and water using appliances along with guidance for their implementation.
This document applies to the following products:
a) showers;
b) tap (faucet) equipment;
c) flow regulators (flow controllers);
d) water closet (toilet) equipment;
e) urinal equipment;
f) dishwashers;
g) clothes washing machines;
h) the dryer function of combination washer/dryers, where they use water to dry a load.