1.1 This standard (Part IV) provides guidance for preparation of circuit diagrams used in electro-technology.
Note — This standard does not deal with rules for markings of apparatus terminals. The markings shown in certain figures are only examples.
IS 8270 Pt.4-1977 history
1978IS 8270 Pt.4-1977 Guide to the Preparation of Electrical Technical Drawings, Diagrams and Tables Part IV Circuit Diagrams