Normativa ISO UNE gratis

Fecha de publicación: 24/04/2020 Underwater acoustics – Hydrophones – Calibration of hydrophones – Part 1: Procedures for free-field calibration of hydrophones IEC 60565-1:2020

Fecha de publicación: 27/04/2020 Performance of high-voltage direct current (HVDC) systems with line-commutated converters – Part 2: Faults and switching IEC TR 60919-2:2008+AMD1:2015+AMD2:2020 CSV

Fecha de publicación: 27/04/2020 Specifications for particular types of winding wires – Part 0-4: General requirements – Glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire IEC 60317-0-4:2020

Fecha de publicación: 27/04/2020 Specifications for particular types of winding wires – Part 0-4: General requirements – Glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire IEC 60317-0-4:2020 RLV

Fecha de publicación: 27/04/2020 Amendment 2 – Performance of high-voltage direct current (HVDC) systems with line-commutated converters – Part 2: Faults and switching IEC TR 60919-2:2008/AMD2:2020

Fecha de publicación: 28/04/2020 Power systems management and associated information exchange – Data and communications security – Part 8: Role-based access control for power system management IEC 62351-8:2020

Fecha de publicación: 28/04/2020 Semiconductor devices – Micro-electromechanical devices – Part 37: Environmental test methods of MEMS piezoelectric thin films for sensor application IEC 62047-37:2020

Fecha de publicación: 28/04/2020 Laser displays – Part 5-6: Measuring methods for optical performance of projection screens IEC 62906-5-6:2020

Fecha de publicación: 28/04/2020 Guidance for installation procedures and tolerances of hydroelectric machines – Part 3: Vertical Francis turbines or pump-turbines IEC 63132-3:2020

Fecha de publicación: 28/04/2020 Guidance for installation procedures and tolerances of hydroelectric machines – Part 4: Vertical Kaplan or propeller turbines IEC 63132-4:2020