On this day, 78 years ago, on February 23, 1947 (February 3, 1947 in the lunar calendar), the International Organization for Standardization was officially established. International standardization activities first began in the electronics field, and in 1906, the world's earliest international standardization body-the International Electrotechnical Commission (IEC) was established. Work in other technical areas was originally undertaken by the International Alliance of National Standardization Societies (ISA), established in 1926, with a focus on mechanical engineering. ISA work was terminated in 1942 due to World War II. In 1946, representatives from 25 countries met in London and decided to establish a new international organization with the purpose of promoting international cooperation and the unification of industrial standards. As a result, the new organization ISO was officially established on February 23, 1947, with its headquarters in Geneva, Switzerland. ISO issued the first standard in 1951-standard reference temperature for industrial length measurement. The International Organization for Standardization (ISO) is a global non-governmental organization and a very important organization in the field of international standardization. ISO's mission is to promote standardization and related activities on a global scale to facilitate the international exchange of products and services, and to develop international mutual cooperation in knowledge, science, technology and economic activities. It has shown strong vitality and attracted more and more countries to participate in its activities. Its members are composed of national standardization bodies from more than 100 countries around the world. The national agency representing China in participating in ISO is the State Administration of Technical Supervision of China. Meaning of ISO: "ISO" is not an abbreviation of its full initials, but a word. It comes from the Greek word and means "equal". From "equal" to "standard", the connotation connection makes "ISO" become the name of the organization.