ASTM F152 is a test standard that covers tensile strength of nonmetallic gasketing materials at room temperature. The types of materials covered are those containing asbestos and other inorganic fibers (Type 1), cork (Type 2), cellulose or other organic fiber (Type 3), and flexible graphite (Type 5) as described in Classification F 104. ASTM F152 is not applicable to the testing of vulcanized rubber, a method for which is described in Test Methods D 412 nor for rubber O-rings, a method for which is described in Test Methods D 1414.
Before conducting ASTM F152, it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.