GB: GB bụ ndebiri Pinyin nke China nke “National Standard”, nke pụtara ọkọlọtọ mba nke ndị mmadụ Republic of China.

ISO: ndebiri Bekee nke International Organisation for Standardization. Aha ya zuru oke bụ International Organisation for Standardization or International Standard Organised

IEC: bụ ndebiri nke International Electro Technical Commission (International Electro Technical Commission). Ọ bụkwa nzukọ mba na-abụghị nke gọọmentị na nzukọ na-ahụ maka ọkwa Grade A nke United Nations Social and Economic Council. E guzobere ya na 1906 ma ọ bụ nzukọ izizi mba ụwa pụrụ iche nke izizi.

IEEE: Institute of Electrical and Electronics Engineers (IEEE) Institute of Electrical and Electronics Engineers (IEEE) bụ njikọ mba ụwa nke teknụzụ elektrọnik na ndị injinia sayensị ozi. GB bụ ndebiri ọkọlọtọ Chinese pinyin. Ụkpụrụ mba China.

IEC: Ọ bụ ndebiri nke International Electrotechnical Commission. Ụkpụrụ kwekọrọ bụ ọkọlọtọ nke International Organisation for Standardization guzobere, nke bụ ọkọlọtọ mba ụwa nke ndị ọkụ eletrik ghọtara.

ISO bụ ndebiri nke International Organisation for Standardization, na -egosi ọkọlọtọ kwekọrọ na nọmba ISO+, nke sara mbara karịa oke IEC. IEEE bụ ndebiri nke Institute of Electrical and Electronics Engineers, ụkpụrụ ya na -ekpuchikwa ohere mbara igwe, kọmpụta, nkwukọrịta, biomedicine, ike, na ngwa elektrọnik.