ISO 4217 codes (STANAG 1059, 9th edition) use "X" codes for imaginary exercise countries ranging from XXB for "Brownland" to XXR for "Redland", as well as for major commands such as XXE for SHAPE or XXS for SACLANT. Consequently, ISO 4217 can use "X" codes for non-country-specific currencies without risk of clashing with future country codes. The inclusion of EU (denoting the European Union) in the ISO 3166-1 reserved codes list, allows the euro to be coded as EUR rather than assigned a code beginning with X, even though it is a supranational currency. The ISO 4217 standard includes a crude mechanism
ISO/IEC JTC 1/SC 28 ISO/IEC JTC 1/SC 28 ISO/IEC JTC 1/SC 28 Office equipment is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates international standards, technical reports, and technical specifications within the field of office equipment and products, and systems composed of combinations of office equipment. The group’s main focus lies within the area of printers and copiers. The international secretariat of ISO/IEC JTC 1/SC 28 is the Japanese Industrial Standards Committee (JISC) located in Japan. ISO/IEC JTC 1/SC 28 was established in 1989