IEC 60839-5-4 Ed. 1.0 b:1991 [ Withdrawn ] Alarm systems - Part 5: Requirements for alarm transmission systems - Section 4: Alarm transmission systems using dedicated alarm transmission paths standard by International Electrotechnical Commission, 05/03/1991
IEC 60839-5-2 Ed. 1.0 b:1991 [ Withdrawn ] Alarm systems - Part 5: Requirements for alarm transmission systems - Section 2: General requirements for equipment standard by International Electrotechnical Commission, 05/03/1991
IEC 60839-5-1 Ed. 1.0 b:1991 [ Withdrawn ] Alarm systems - Part 5: Requirements for alarm transmission systems - Section 1: General requirements for systems standard by International Electrotechnical Commission, 05/03/1991
IEC 60839-5-6 Ed. 1.0 b:1991 [ Withdrawn ] Alarm systems - Part 5: Requirements for alarm transmission systems - Section 6: Requirements for voice communicator systems using the public switched telephone network standard by International Electrotechnical Commission, 05/03/1991
IEC 61065 Ed. 1.0 b:1991 Method for evaluating the low temperature flow properties of mineral insulating oils after ageing standard by International Electrotechnical Commission, 05/01/1991
IEC 61017-1 Ed. 1.0 b:1991 [ Withdrawn ] Portable, transportable or installed X or gamma radiation ratemeters for environmental monitoring - Part 1: Ratemeters standard by International Electrotechnical Commission, 04/30/1991
IEC 60756 Ed. 2.0 b:1991 Non-broadcast video tape recorders - Time base stability standard by International Electrotechnical Commission, 04/23/1991
IEC 61063 Ed. 1.0 b:1991 Acoustics - Measurement of airborne noise emitted by steam turbines and driven machinery standard by International Electrotechnical Commission, 04/22/1991
IEC 60989 Ed. 1.0 b:1991 Separating transformers, autotransformers, variable transformersand reactors. standard by International Electrotechnical Commission, 04/18/1991
IEC 60507 Ed. 2.0 b:1991 [ Withdrawn ] Artificial pollution tests on high-voltage insulators to be used on a.c. systems standard by International Electrotechnical Commission, 04/17/1991
IEC 60969 Amd.1 Ed. 1.0 b:1991 [ Withdrawn ] Amendment 1 - Self-ballasted lamps for general lighting services - Performance requirements Amendment by International Electrotechnical Commission, 04/16/1991
IEC 60968 Amd.1 Ed. 1.0 b:1991 [ Withdrawn ] Amendment 1 - Self-ballasted lamps for general lighting services - Safety requirements Amendment by International Electrotechnical Commission, 04/16/1991