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 22715 The International Organization for Standardization (ISO) was formed in 1947. It is a non-governmental organization (NGO) that is based in Geneva, Switzerland. The ISO has 162 members and the organization represents the interest of international standards of 196 countries. This represents almost 97 percent of the world’s population. The ISO’s purpose is to create standards that are used to help form public policies and business objectives that benefit people throughout the world. Since May 2016, there has been over 21,500 ISO standards published. The ISO develops new standards when industry sectors and their stakeholders determine that a need exists. The