IS Title/आईएस शीर्षक:
Graphical symbols used in electrotechnology: Part 20 radio communications transmission circuits, lines and accessories (Withdrawn)
Superseded by IS/प्रतिस्थापित आईएस:
Decided by divisional council 15 sep 2020
Degree of Equivalence/समतुल्यता स्तर:
Indigenous
Number of Revisions/पुनरीक्षणों की संख्या:
New Standard
Number of Amendments/संशोधनों की संख्या:
No amendment issued