Deutsches Institut für Normung

Deutsches Institut für Normung e.V. (DIN; in English, the German Institute for Standardization) is the German national organization for standardization and is that country's ISO member body.DIN and mini-DIN connectors, as well as DIN rails are several examples of older DIN standards that are today used around the world. However, there are currently around thirty thousand DIN Standards, covering almost all fields of technology. One of the earliest, and surely the most well-known, is DIN 476, the standard that introduced the A4, etc. paper sizes in 1922. This was later adopted as international standard ISO 216 in 1975.
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Germany's standards-setting organization, equivalent to the American National Standards Institute (ANSI).