ASTM D 6226 - 05 Standard Test Method for Open Cell Content of Rigid Cellular Plastics

American Society for Testing and Materials (ASTM). Current edition approved April 1, 2005. Published June 2005. Originally approved in 1998. Last previous edition approved in 1998 as D 6226 - 98. 7 p. This test method covers cellular plastics, which are composed of membranes or walls of polymer separating small cavities or cells. These cells may be interconnecting (open cell), non-connecting (closed cell), or any combination of these types. This test method determines numerical values for open cells. It is a porosity determination, measuring the accessible cellular volume of a material. The remaining volume is that occupied by closed cells and cell walls.