规定了除AS5263中规定的气体用具一般要求之外或替代AS5263中规定的气体用具一般要求的特殊要求和试验方法。0对于采用天然气、城镇燃气、液化石油气和回火液化石油气（TLP）作为燃料的自然通风或风机辅助燃烧系统的气体空间加热设备（对流器、辐射对流器、壁炉），能量输入不超过50MJ/h的直燃式空气加热器，以及150MJ/h的其他设备。

Specifies particular requirements and test methods that apply in addition to or in place of the general requirements for gas appliances set out in AS5263.0 for gas space heating appliances (convectors, radiant convectors, wall furnaces) with natural draught or fan assisted combustion systems which use natural gas, town gas, liquefied petroleum gas and tempered liquefied petroleum gas (TLP) as a fuel, with an energy input not exceeding, 50MJ/h for direct fired air heater, and 150MJ/h for other appliances.