national standards of People's Republic of China
The People's Republic of China national standard, referred to as the national standard (Guóbiāo, GB, according to Chinese phonetic pronunciation), by the International Organization for Standardization and the International Electrotechnical Commission on behalf of the People's Republic of China member institutions National Standardization Management Committee. "People's Republic of China national standard" sometimes referred to as the Chinese national standard. The national standard is the standard adopted and published by the national standards body. "The standard issued in 1994 and before, with 2 digits representing the year. Beginning in 1995 issued by the standard, the standard number after the year, was changed to 4 digits. ...