This standard specifies 3-letter codes for 431 languages (including collective languages), each language has its corresponding code for terminology (T) and code for bibliography (B), except for 23 languages Except for the difference between the T code and the B code, the T code and the B code of other languages are the same. This standard applies to terminology, lexicography, linguistics, bibliography, etc., and is also applicable to any information processing and needs to express the language in the form of codes. Fields of work, including those used in libraries, information services, and publishing work to exchange information.
GB/T 4880.2-2000 history
2000GB/T 4880.2-2000 Codes for the representation of names of languages--Part 2: Alpha-3 code