This Standard sets out minimum requirements for the materials, design, manufacture, testing, inspection, certification, documentation and dispatch of fired and unfired pressure vessels constructed in ferrous or non-ferrous metals by welding, brazing, casting, forging, or cladding and lining and includes the application of non-integral fittings required for safe and proper functioning of pressure vessels. This Standard also specifies requirements for non-metallic vessels and metallic vessels with non-metallic linings.

For detailed requirements for metallic materials, manufacture, testing and conformity assessment, reference is made to the relevant material Standards, AS 4458, AS 3920.1, AS/NZS 3992 and AS 4037.

The requirements of this Standard have been formulated on the basis that the required examinations and inspection during manufacture are performed and that appropriate care is taken during subsequent stages in the life of vessels. Appropriate care may include transport, installation (for guidance see AS 3892), operation and maintenance (for guidance see AS 3873), and in-service inspection (for guidance see AS/NZS 3788). Other standards or procedures may also be relevant.

Users of this Standard are reminded that it has no legal authority in its own right, but may acquire legal standing in one or more of the following circumstances:

(a) Adoption by a government or other authority having jurisdiction.

(b) Adoption by a purchaser as the required standard of construction when placing a contract.

(c) Adoption where a manufacturer states that a vessel is in accordance with this Standard