GOST 2.303-1968 Unified system for design documentation. Lines
GOST 2.306-1968 Unified system for design documentation. Graphical designations of materials and rules for their representation
GOST 2.315-1968 Unified system for design documentation. Simplified and symbolic designations of fasteners
GOST 21.112-1987 System of design documentation for construction. Hoisting-and-conveying machinery. Symbols
GOST 21.204-1993 System of building design documents. Graphical symbols and signs of elements of general layouts and transport
GOST 21.205-1993 System of design documents for construction. Elements of sanitary engineering systems-symbols
GOST 21.206-1993 System of building design documents. Pipelines. Symbols for presentation
GOST 21.302-1996 System of design documents for consruction. Graphic symbols for engineering geological investigation documents
GOST 21.501-2011 System of design documents for construction. Rules for execution of the working documentation of architectural and construction solutions
GOST 21.201-2011 history
2011GOST 21.501-2011 System of design documents for construction. Rules for execution of the working documentation of architectural and construction solutions
1993GOST 21.501-1993 System of design documents for construction. Rules for execution of architectural and construction working drawings