The following Standards are out for public comment until 29 August 2023: AS 4617:2018 AMD 2 – Manually operated gas valves AS 4621:2019 AMD 2 – Regulator for use with liquefied petroleum – Vapour phase AS 4627:2017 AMD 3 – Quick-connect devices for gas If you would like to submit any comments, you may forward them directly through to Standards Australia – See following guide: Click Here Refer fr..