Note that this standard has been updated and you may need to meet the requirements set out in AS 4670:2018 Commercial Propane and Commercial Butane for Heating Purposes.
You will need to comply with this standard if you intend to operate a gas distribution system. A gas distribution system is a system of pipelines, mains, and gas service pipes, designed to operate at a pressure of less than 1.9 megapascals, for the transportation of gas to customers.
This standard specifies requirements for liquefied petroleum gas (LP Gas) products in the liquid phase as supplied for general domestic and industrial fuel purposes, in bulk and into cylinders.