This Standard specifies requirements for the design and construction of solar hot water supply systems for household premises and for commercial and industrial installations comparable with household installations, intended to deliver potable water of acceptable quality.It is intended to cover types of systems with a volumetric storage capacity up to and including 700 L.The Standard does not apply to solar hot water supply systems for space heating, swimming pool heating or for large buildings such as multiple dwelling buildings.NOTES:1 The requirements of this Standard are based on systems with fixed solar orientation and inclination, but they may be applied to tracking systems. Further requirements for tracking systems will be included in the Standard at a later date.2 Rules for the installation of household solar hot water supply systems are given in AS 3500.4.For health and safety requirements the solar water heater shall comply with AS 3498(Int).