GeneralThis Standard provides minimum requirements for the design, construction and safe operation of TypeB appliances that use town gas, natural gas, simulated natural gas, liquefied petroleum gas, tempered liquefied petroleum gas or any combination of these gases either together or with other fuels.Construction requirements given relate only to matters affecting gas-firing or to any interconnection between the gas-firing system and the safety requirements of the appliance.NOTE: Additional information regarding safety principles for industrial appliances is given in AS1375.The Standard does not cover all the requirements for the safety of the process carried out in the appliance. Other statutory and regulatory requirements may be applicable to the appliances and/or installations that fall within the scope of this Standard. It is the installer/manufacturer’s responsibility to ensure that appliances and/or installations comply with these requirements.Installation requirements for appliances covered by this Standard are detailed in AS5601.Exclusions from StandardThe following appliances are excluded from this Standard:(a) Manually operated bunsen type burners.(b) Simple atmospheric burners that are not fitted into a combustion chamber and burn in an open ventilated space under the control of an operator.(c) Engines other than stationary engines.

First published as AS 3814-1998 (AG 501).Second edition 2000.Third edition 2002.Republished and designated AS3814-2005. Originated as AG 501-1984. Previous edition 2002. Republished and designated AS 3814-2005.