ISO/IEC 9995-8:2006

Within the general scope described in ISO/IEC 9995-1, ISO/IEC 9995-8:2006 specifies the allocation of letters to the keys of the numeric zone ZN0 of information technology keyboards which have the ten digits zero to nine allocated in the "1-2-3" layout. The layout specified is intended for applications of information technology keyboards where letters instead of digits are used for the mnemonic retention of numeric information.