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[PDF] IEC 60268-9:1977 gratis

Fecha de publicación: 01/01/1977 Sound system equipment – Part 9: Artificial reverberation, time delay and frequency shift equipment IEC 60268-9:1977

[PDF] IEC 60061-1H:1977 gratis

Fecha de publicación: 01/01/1977 Eighth supplement – Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 1: Lamp caps IEC 60061-1H:1977

[PDF] IEC TR 60575:1977 gratis

Fecha de publicación: 01/01/1977 Thermal-mechanical performance test and mechanical performance test on string insulator units IEC TR 60575:1977

[PDF] IEC 60554-1:1977 gratis

Fecha de publicación: 01/01/1977 Specification for cellulosic papers for electrical purposes. Part 1: Definitions and general requirements IEC 60554-1:1977

[PDF] IEC 60061-2E:1977 gratis

Fecha de publicación: 01/01/1977 Fifth supplement – Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 2: Lampholders IEC 60061-2E:1977

[PDF] IEC 60061-1G:1977 gratis

Fecha de publicación: 01/01/1977 Seventh supplement – Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 1: Lamp caps IEC 60061-1G:1977

[PDF] IEC 60590:1977 gratis

Fecha de publicación: 01/01/1977 Determination of the aromatic hydrocarbon content of new mineral insulating oils IEC 60590:1977

[PDF] IEC 60231G:1977 gratis

Fecha de publicación: 01/01/1977 Supplement G – General principles of nuclear reactor instrumentation – Liquid-metal cooled fast reactors IEC 60231G:1977