GB/T 4728.12 and GB/T 4728.13 respectively stipulate the composition rules of binary logic components and analog component graphic symbols, and provide alternative methods for expressing functions in different situations. This standard proposes the application of GB/T 4728.12 and GB/T 4728.13 to draw graphic symbols, so that the compiled graphic symbols are consistent and can accurately represent functions. This standard also formulates additional provisions not included in GB/T 4782.12 and GB/T 4728.13, which are suggested to be included in GB/T 4728.12 and GB/T 4728.13 to help the drawing of symbols.
GB/T 20295-2006 history
2014GB/T 20295-2014 Application of symbols for binary logic and analogue elements
2006GB/T 20295-2006 Application of GB/T4728.12 and GB/T4728.13 standards