1.1 This classification system covers polyamide-imide materials suitable for injection molding and extrusion.1.2 The properties included in this classification system are those required to identify the compositions covered. There may be other re This classification system covers polyamide-imide materials suitable for injection molding and extrusion. Polyamide-imide materials are classified into groups that are subdivided into classes and grades. These groups are: Group 01 which is suitable for