AS/NZS 4422:1996

Specifies general requirements for surfacing to be used in children's playgrounds and specific requirements for areas where impact energy attenuation is necessary. It suggests the factors that should be considered when selecting a playground surface and gives a method of test by which the impact energy attenuation can be determined; this test gives a critical fall height for a surface, that represents the upper limit of its effectiveness in reducing head injury when using playground equipment conforming to AS 1924, Parts 1 and 2 or NZS 5828, Parts 2 and 3.