This sheet of IEC 60819-3 specifies requirements for two types of aramid fibre paper containing mica particles and designated as PAaM. – type 1: calendered aramid paper containing mica particles; – type 2: uncalendered aramid paper containing mica particles. Materials which conform to this specification meet established levels of performance. However, the selection of material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. SAFETY WARNING: It is the responsibility of the user of the methods contained or referred to in this document to ensure that they are used in a safe manner.