Tra cứu Tiêu chuẩn quốc tế
Tìm thấy 852 kết quả.
Searching result
| 641 |
IEC 61540:1997
Electrical accessories - Portable residual current devices without integral overcurrent protection for household and similar use (PRCDs) |
| 642 |
IEC 61566:1997
Measurement of exposure to radio-frequency electromagnetic fields - Field strength in the frequency range 100 kHz to 1 GHz |
| 643 |
IEC 61578:1997
Radiation protection instrumentation - Calibration and verification of the effectiveness of radon compensation for alpha and/or beta aerosol measuring instruments - Test methods |
| 644 |
|
| 645 |
IEC 61580-4:1997
Methods of measurement for waveguides - Part 4: Attenuation of waveguide and waveguide assemblies |
| 646 |
|
| 647 |
IEC 61595-1:1997
Multichannel digital audio tape recorder (DATR), reel-to-reel system, for professional use - Part 1: Format A |
| 648 |
IEC 61595-2:1997
Multichannel digital audio tape recorder (DATR), reel-to-reel system, for professional use - Part 2: Format B |
| 649 |
IEC 61603-1:1997
Transmission of audio and/or video and related signals using infra-red radiation - Part 1: General |
| 650 |
IEC 61603-2:1997
Transmission of audio and/or video and related signals using infra-red radiation - Part 2: Transmission systems for audio wide band and related signals |
| 651 |
IEC 61603-3:1997
Transmission of audio and/or video and related signals using infra-red radiation - Part 3: Transmission systems for audio signals for conference and similar systems |
| 652 |
IEC 61619:1997
Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography |
| 653 |
IEC 61621:1997
Dry, solid insulating materials - Resistance test to high-voltage, low-current arc discharges |
| 654 |
IEC 61628-1:1997
Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements |
| 655 |
IEC 61642:1997
Industrial a.c. networks affected by harmonics - Application of filters and shunt capacitors |
| 656 |
IEC 61650:1997
Reliability data analysis techniques - Procedures for comparison of two constant failure rates and two constant failure (event) intensities |
| 657 |
IEC 61660-1:1997
Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 1: Calculation of short-circuit currents |
| 658 |
IEC 61660-2:1997
Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 2: Calculation of effects |
| 659 |
IEC 61800-1:1997
Adjustable speed electrical power drive systems - Part 1: General requirments - Rating specifications for low voltage adjustables speed d.c. power drive systems |
| 660 |
IEC 61843:1997
Measuring method for the level of intermodulation products generated in a gyromagnetic device |
