This part of GB/T 6567 specifies the basic principles for the expression, use and combination derivation of commonly used graphic symbols in piping systems. This part applies to the schematic diagram of the piping system for conveying liquid, gas and other media, and can also be used for other relevant design drawings.
GB/T 6567.1-2008 Referenced Document
GB/T 17450-1998 Technical drawings--Basic conventions for lines
GB/T 4457.4-2002 Mechanical drawings--General principles of presentation-Lines
GB/T 6567.1-2008 history
2008GB/T 6567.1-2008 Technical drawings.Graphical symbols for piping systems.Basic principles
1986GB/T 6567.1-1986 Graphical symbols for piping systems--Basic principles