Which one of these two ISO 639-2 code refers to Traditional Chinese . . . The wiki page of Chinese language, as well as the following two links from ISO 639 documentation, chi and zho, all tell us that chi is ISO 639-2 B, where the B stands for bibliographic, zho being ISO 639-2 T, T for terminological The explanation of the B and T codes does not shed any light on traditional-or-simplified information the either