Vietnam Standards
Vietnam Standards, abbreviated TCVN for the Vietnamese Tiêu chuẩn Việt Nam, are the national standards of Vietnam issued by the Vietnam Standard and Quality Institute, part of the Directorate for Standards, Metrology And Quality (STAMEQ). These standards are identified by the prefix "TCVN" followed by a number, a colon, and the year issued. For instance, "TCVN 4980:2006" refers to the national standard numbered 4980, issued in 2006.