This part of ISO 14526 establishes a data block system for the designation of phenolic powder moulding compounds (PF-MCs). The various types of PF-PMC are differentiated from each other by a classification system based on information about the filler/reinforcement type and content, the intended method of processing, any special properties and those of the special properties used specifically for designation purposes (designatory properties). This part of ISO 14526 is applicable to all PF-PMCs ready for normal use in the form of powder, granules or ground material. It is not intended to imply that materials having the same designation necessarily give the sa