AS 4617:2018 PDF
Specifies the requirements for manually operated valves up to 200 mm size for use with natural gas (NG), simulated natural gas (SNG), town gas (TG), tempered liquefied petroleum gas (TLP) and liquefied petroleum gas (LPG) in the vapour phase.
This Standard specifies the minimum safety and performance requirements for manually operated valves up to 200 mm nominal size for use on—
(a) natural gas (NG);
(b) simulated natural gas (SNG);
(c) town gas (TG);
(d) tempered liquefied petroleum gas (TLP); and
(e) liquefied petroleum gas (LPG) in vapour phase.