IEC 60130-9 Ed. 3.0 b:2000

Connectors for frequencies below 3 MHz – Part 9: Circular connectors for radio and associated sound equipment
standard by International Electrotechnical Commission, 05/18/2000

IEC 60094-3 Ed. 1.0 b:1979

Magnetic tape sound recording and reproducing systems – Part 3: Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape
standard by International Electrotechnical Commission, 01/01/1979

IEC 60050-821 Ed. 1.0 b:1998

International Electrotechnical Vocabulary – Part 821: Signalling and security apparatus for railways
standard by International Electrotechnical Commission, 04/29/1998

IEC 60317-0-6 Ed. 1.1 b:2007

Specifications for particular types of winding wires – Part 0-6: General requirements – Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 01/18/2007

IEC 60050-721 Ed. 1.0 t:1991

International Electrotechnical Vocabulary (IEV) – Part 721: Telegraphy, facsimile and data communication
standard by International Electrotechnical Commission, 11/30/1991