AS 4670:2018 PDF
Provides regulatory authorities and users with uniform gas composition requirements for liquefied petroleum gases (LP Gas) that are suitable for heating purposes.
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. The requirements apply to the liquid phase at the point of custody transfer.
This Standard does not include requirements for storage or handling of LP Gas. These are covered in AS/NZS 1596.
NOTE The composition of the vapour phase is considered to be a direct consequence of the composition of the liquid phase.