Japanese Industrial Standards specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.
In the Meiji era, private enterprises were responsible for making standards. However, the Japanese government did have standards and specification documents for procurement purposes for certain articles, such as munitions. These were summarized to form an official standard old JES in 1921. During World War II, simplified standards were established to increase matériel output. The Industrial Standardization Law was enacted in 1949, which forms the legal foundations for the present Japanese Industrial Standards.
The Industrial Standardization Law was revised in 2004 and the JIS mark product certification system was changed. Standards are named like "JIS X 0208:1997", where X denotes area division, followed by four digits (or five digits for some of the standards corresponding ISO standards) and the revision release year.
G - Ferrous Materials and Metallurgy
H - Nonferrous Materials and Metallurgy