I-GB: I-GB isifinyezo se-Chinese Pinyin se- “National Standard”, okusho ukuthi izinga likazwelonke le-People's Republic of China.

I-ISO: Isifinyezo sesiNgisi se-International Organisation for Standardization. Igama layo eligcwele yi-International Organisation for Standardization noma i-International Standard Organized

I-IEC: isifinyezo se-International Electro Technical Commission (International Electro technical Commission). Uphinde abe yinhlangano yamazwe engekho ngaphansi kukahulumeni kanye nenhlangano ebonisanayo kaGrade A yoMkhandlu Wezizwe Nezomnotho Wezizwe Ezihlangene. Yasungulwa ngokusemthethweni ngonyaka we-1906 futhi yinhlangano yokuqala yezomthetho ekhethekile emhlabeni jikelele.

IEEE: Institute of Electrical and Electronics Engineers (IEEE) I-Institute of Electrical and Electronics Engineers (IEEE) iyinhlangano yomhlaba wonke yobunjiniyela bezobuchwepheshe bezobuchwepheshe kanye nolwazi. I-GB yisifinyezo esijwayelekile sikazwelonke se-Chinese pinyin. Izindinganiso zikazwelonke zaseChina.

I-IEC: Yisifinyezo seKhomishini Yezomhlaba Yezobuchwepheshe. Izinga elihambisanayo yizinga elisungulwe yile Nhlangano Yamazwe Ngamazwe Yokumiswa Kwezinga, okuyilelo ikakhulukazi elejwayelekile eliqondwa ngabasebenza ngogesi.

I-ISO yisifinyezo se-International Organisation for Standardization, futhi indinganiso ehambelana nayo ikhonjiswa ngenombolo ye-ISO +, ebanzi kunobubanzi obujwayelekile be-IEC. IEEE yisifinyezo se-Institute of Electrical and Electronics Engineers, futhi amazinga ayo ahlanganisa imikhakha yesikhala, amakhompyutha, ezokuxhumana ngocingo, i-biomedicine, amandla, kanye ne-electronics yabathengi.