Current edition approved April 1, 2011. Published May 2011. Originally approved in 1968. Last previous edition approved in 2009 as F104 – 03 (2009). — 12 p.
This classification system2 provides a means for specifying or describing pertinent properties of commercial nonmetallic gasket materials. Materials composed of asbestos, cork, cellulose, and other organic or inorganic materials in combination with various binders or impregnants are included. Materials normally classified as rubber compounds are not included, since they are covered in Classification D2000. Gasket coatings are not covered, since details thereof are intended to be given on engineering drawings or in separate specifications. Facing materials for laminate composite gasket materials (LCGM) are included in Classification System F104. Assembled LCGMs are covered in Classification F868.
Since all of the properties that contribute to gasket performance are not included, use of the classification system as a basis for selecting materials is limited.