The Water Efficiency Labelling Scheme - Shower is a voluntary scheme using a graded labelling system.
The sprinkler applied for registration will be tested to determine whether it meets the performance requirements set out in the Scheme, including the average spray Angle, temperature drop and throttle endurance. At the same time, the design and manufacture of the shower shall be in accordance with the internationally recognized quality management system (e.g. ISO 9001).
Products meeting the above requirements can be rated according to the nominal flow obtained from the test according to the following table:
The test methods and technical standards for shower are directly referenced to Australian/New Zealand Standard AS/NZS 3662:2005