GOST 21.404-1985
System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams

Standard No.

GOST 21.404-1985

Release Date

1985

Published By

RU-GOST R

Status

Be replaced 2014-11

Replace By

GOST 21.208-2013

Latest

GOST 21.208-2013

Scope

This standard establishes symbols for devices. automation equipment and communication lines used in the implementation of circuit diagrams

GOST 21.404-1985 Referenced Document

• GOST 2.303-1968 Unified system for design documentation. Lines
• GOST 2.304-1981 Unified system for design documentation. Letters for drawings

GOST 21.404-1985 history

• 2013 GOST 21.208-2013 System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams
• 1985 GOST 21.404-1985 System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams

GOST 21.404-1985 System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams was changed to GOST 21.208-2013 System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams.