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Specifies common plumbing and drainage terms and associated definitions used in areas of the plumbing and drainage sector including product manufacturing specifications, design and installation standards (such as the AS/NZS 3500 series) and regulatory documents.

Specifies requirements for the design, construction, location, and operation and testing of systems for the storage and handling of anhydrous ammonia. Requirements for the management of emergencies involving anhydrous ammonia and for the fire protection associated facilities are also specified.

Sets out requirements and recommendations for the storage and handling of toxic substances that in Australia, meet the Class 6.1 classification criteria of the ADG Code and in New Zealand, the Class 6.1 classification criteria of the IMDG Code and Schedules 1-4 of the New Zealand Toxic Substances Regulations 1983. The Standard applies to Class 6.1 substances and may also apply to substances of other classes having a 6.1 Subsidiary Risk. A discussion of the hazards presented by toxic substances and a bibliography of documents providing guidelines on the preparation of emergency plans are provided in appendices.

Sets out requirements and recommendations for the safe storage and handling of Class 9 (miscellaneous) dangerous goods and articles, in packages, IBCs and bulk. Advice is given on fire protection, waste disposal, operations and personnel safety. Guidelines for emergency procedures are also provided.

Sets out requirements and recommendations for the safe storage and handling of Class 4 dangerous goods as classified in the ADG Code, for Australia, and the HNSO Act, for New Zealand.

Specifies requirements and means of conformance for the design, installation and commissioning of LP Gas installations in caravans and boats for non-propulsive purposes.

AS/NZS 3500.3:2025 specifies the requirements for materials, design, installation and testing of roof drainage systems, surface drainage systems and subsoil drainage systems to a point of connection

AS/NZS 5601.1:2022 is amended as follows.

AS/NZS 3500.4:2025 specifies the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof. It includes aspects of the installation from the valves on the cold-water inlet to any cold-water storage tank or water heater and the downstream fixtures and fittings. It applies to new installations as well as alterations, additions and repairs to existing installations

AS/NZS 3500.1:2025 specifies requirements for the design, installation and commissioning of cold-water services, non-drinking water services, and rainwater tanks and rainwater supply systems for drinking and non-drinking purposes. It applies to new installations as well as alterations, additions and repairs to existing installations