American Society for Testing and Materials (ASTM). Current edition approved Jan. 1, 2005. Published January 2005. Originally approved in 1997. Last previous edition approved in 2004 as E 1886 – 04a. 8 p. This test method covers the performance of exterior windows, curtain walls, doors, and impact protective systems impacted by missile(s) and subsequently subjected to cyclic static pressure differentials. A missile propulsion device, an air pressure system, and a test chamber are used to model some conditions which may be representative of windborne debris and pressures in a windstorm environment. This test method is applicable to the design of entire fenestration or impact protection systems assemblies and their installation. The performance determined by this test method relates to the ability of elements of the building envelope to remain unbreached during a windstorm.