AS 4575:2019 PDF
The objective of this Standard is to specify essential requirements and basic standards for the delivery of Type A gas appliance servicing, repair, testing and conversion from one gas type to another.
The AS/NZS 5601 series specifies requirements for gas installations applying at the time of installation.
This Standard is not to be regarded as an instruction manual for untrained persons.
This Standard has no legal standing in its own right, but may acquire legal standing in either of the following circumstances:
(a) Where adopted by a Government or other authority having jurisdiction over relevant installations.
(b) Where adopted as part of an installation specification.