2013GB/T 10001.1-2012 Public information graphical symbols.Part 1:General symbols
2006GB/T 10001.1-2006 Public information graphical symbols for use on sign. Part 1: Common symbols
1994GB 10001-1994 Graphical symbols for public information signs
GB 10001-1994 Graphical symbols for public information signs was changed to GB/T 10001.1-2006 Public information graphical symbols for use on sign. Part 1: Common symbols.
GB 10001-1994 Graphical symbols for public information signs was changed to GB/T 10001.2-2006 Public information graphical symbols for use on sign.Part 2:Symbols for tourism and entertainment.