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About This Item


Full Description

Specifies the requirements of air gaps and break tanks used as backflow prevention devices for the protection of potable water supply.

Document History

  1. AS 2845.2-2010

    Water supply - Backflow preventions devices, Part 2: Registered air gaps and registered break tanks

    • Most Recent
  2. AS 2845.2-1996

    Water supply - Backflow prevention devices, Part 2: Air gaps and break tanks

    • Historical Version
  3. AS 2845.2-1994


    Water supply - Backflow prevention devices - Air gaps and break tanks

    • Historical Version