IEC60127 is a set of European standards for fuses. There can be some confusion about this standard as its often unclear if a fuse used in a particular application is required to comply. It is not the case that all fuses used in equipment sold in the European Union must comply with IEC60127.Many applications do require compliance and as a general guide its applications where the voltage is AC and >50V where compliance is required, but this is not exclusively the case.
In many battery powered applications for instance, such as mobile phones, PDA’s etc compliance is not required and using fuses that comply with American UL requirements is widely accepted.