Home / Standards / GB/T 16831-1997 GB/T 16831-1997 Abolished Standard representation of latitude, longitude and altitude for geographic point locations 地理点位置的纬度、经度和高程的标准表示法 Standard Type GBT ICS 35.240.70 CCS L72 Status 废止 Issue Date 1997-05-26 Implementation 1998-03-01 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A