GOST 2.787-1971 Unified system for design documentation. Graphic designations in diagrams. Elements, devices and arrangements of gas chromatograph system
1976GOST 21787-1976 Groundtype and vehicle borne loading unloading and restraining equipment for aircraft multiporpose containers and pallets. General technical requirements
1971GOST 2.787-1971 Unified system for design documentation. Graphic designations in diagrams. Elements, devices and arrangements of gas chromatograph system