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ASTM. 1995. Standard test method for shock-absorbing properties of playing surface systems and materials. ASTM F355–95, Vol. 15.07. West Conshohocken , PA : American Society for Testing and Materials.

ASTM. 1999a. Standard specification for impact attenuation of surface systems under and around playground equipment. ASTM F1292–99. West Conshohocken , PA : American Society for Testing and Materials.

ASTM. 1999b. Standard specification for determination of accessibility of surface systems under and around playground equipment. ASTM F1951.West Conshohocken , PA : American Society for Testing and Materials.

ASTM. 2004. Standard specification for engineered wood fiber for use as a playground safety surface under and around playground equipment. F2075–04, Vol. 15.07. West Conshohocken , PA : American Society for Testing and Materials.

Axelson, P.W.; Chesney, D. 1999. Accessible exterior surfaces. Tech. rep. Washington , DC : U.S. Architectural and Transportation Barriers Compliance Board.

Laufenberg T.; Winandy, J.E. 2003. Field performance testing of improved engineered wood fiber (EWF) surfaces for accessible playground areas. Gen. Tech. Rep. FPL–GTR–138. Madison . WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 10 p.

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National Center on Accessibility, Providing Access to Beaches. 2003. Access Today. Special Vol., Issue 9. (Summer).   http://www.indiana.edu/~nca/monographs/Beach-Access.pdf

RESNA , 2000. RESNA surface, section 1: Test method for firmness and stability. Working draft standard. Arlington , VA : Rehabilitation Engineering and Assistive Technology Society of North America . 11–20. This email address is being protected from spambots. You need JavaScript enabled to view it.