Normativa ISO UNE gratis

Fecha de publicación: 01/10/1997 Power transformers – Part 8: Application guide IEC 60076-8:1997

Fecha de publicación: 09/10/1997 Amendment 1 – Electrical measuring instruments – X-t recorders – Part 1: Definitions and requirements IEC 61143-1:1992/AMD1:1997

Fecha de publicación: 09/10/1997 Amendment 1 – Toroidal strip-wound cores made of magnetically soft material IEC 60635:1978/AMD1:1997

Fecha de publicación: 09/10/1997 Amendment 2 – D.C. bridges for measuring resistance IEC 60564:1977/AMD2:1997

Fecha de publicación: 09/10/1997 Amendment 2 – Direct-current resistive volt ratio boxes IEC 60524:1975/AMD2:1997

Fecha de publicación: 17/10/1997 Broadcast video tape recorders – Methods of measurement – Part 4: Analogue audio performance measurements IEC 61237-4:1997

Fecha de publicación: 17/10/1997 Amendment 2 – Direct-current potentiometers IEC 60523:1975/AMD2:1997

Fecha de publicación: 17/10/1997 Amendment 1 – International Electrotechnical Vocabulary (IEV) – Part 161: Electromagnetic compatibility IEC 60050-161:1990/AMD1:1997

Fecha de publicación: 30/10/1997 Secondary cells and batteries – Test methods for checking the performance of devices designed for reducing explosion hazards – Lead-acid starter batteries IEC TS 61430:1997

Fecha de publicación: 30/10/1997 Electromechanical components for electronic equipment – Basic testing procedures and measuring methods – Part 14: Sealing tests – Section 7: Test 14g: Impacting water IEC 60512-14-7:1997