This standard specifies terms and definitions, specification series parameters, requirements, test methods, inspection rules, Encasement transport and storage for thermosetting powder coatings extruders. Applicable to single-screw reciprocating damped extruders, twin-screw extruders, and extruders in the form of Miscellaneous construction, as well as ancillary systems of these extruders, such as feeding systems, metal particle detection systems, heating/chill down systems, lubricating oil systems, and electronic control systems. The standard refers to a series of relevant documents, in which dated documents apply to the specified date version, and undated documents apply to the latest version.