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Outlines minimum requirements for the testing and maintenance of testable backflow prevention devices in the field.

Provides a method whereby the frequency dependent values of airborne sound insulation of building elements and in building can be converted into a single number characterizing the acoustical performance; this Standard is identical with and reproduced from ISO 717-1:1996.

Recommends design criteria for conditions affecting the acoustic environment within building interiors to ensure a healthy, comfortable and productive environment for the occupants and the users.

Defines and provides methods for determining single number quantities for the impact sound insulation in buildings; this Standard is identical with and reproduced from ISO 717-2:1996.

AS/NZS 3500.2:2021 is amended as follows.

Amendment to AS/NZS 3500.1:2021.

Provides a method for the measurement of airborne sound reduction index to building partitions such as walls, floor/ceiling assemblies, doors, windows and other space dividing elements.

Contains Deemed-to-Satisfy Provisions that are considered to be acceptable forms of construction that meet the requirements for complying with Parts H1 to H8 of NCC Volume Two.

Specifies requirements for the design, installation and commissioning of cold water services from a point of connection to the points of discharge, and for non-drinking water from a point of connection to the points of discharge.

Sets out the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof; includes aspects of the installation from, and including, the valve(s) on the cold water inlet to any cold water storage tank or water heater and the downstream fixtures and fittings; applies to new installations as well as alterations, additions and repairs to existing installations.