资质认证
- ISO/IEC 27551:2021
- Information security, cybersecurity and privacy protection - Requirements for attribute-based unlinkable entity authentication
- 2021-09-06
- IEC TR 62001-4:2021
- High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of AC filters - Part 4: Equipment
- 2021-09-06
- ISO/IEC 19763-16:2021
- Information technology - Metamodel framework for interoperability (MFI) - Part 16: Metamodel for document model registration
- 2021-09-06
- IEC TR 62001-4:2021 RLV
- High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of AC filters - Part 4: Equipment
- 2021-09-06
- ISO/IEC 27551:2021
- Information security, cybersecurity and privacy protection — Requirements for attribute-based unlinkable entity authentication
- 2021-09-06
- ISO 23781:2021
- Operating procedures of pig slaughtering
- 2021-09-06
- ISO 23854:2021
- Fermented meat products — Specification
- 2021-09-06
- ISO/IEC 19763-16:2021
- Information technology — Metamodel framework for interoperability (MFI) — Part 16: Metamodel for document model registration
- 2021-09-06
- ISO 13918:2017/Amd 1:2021
- Welding — Studs and ceramic ferrules for arc stud welding — Amendment 1
- 2021-09-06
- ISO 2575:2021
- Road vehicles — Symbols for controls, indicators and tell-tales
- 2021-09-06
- ISO 24136:2021
- Ships and marine technology — Pilot ladder winch reels
- 2021-09-05
- ISO/TR 4445:2021
- Intelligent transport systems — Mobility integration — Role model of ITS service application in smart cities
- 2021-09-05
- IEC 60050-723:1997/AMD7:2021
- Amendment 7 - International Electrotechnical Vocabulary (IEV) - Part 723: Broadcasting: Sound, television, data
- 2021-09-02
- IEC 60050-721:1991/AMD5:2021
- Amendment 5 - International Electrotechnical Vocabulary (IEV) - Part 721: Telegraphy, facsimile and data communication
- 2021-09-02
- IEC 60050-715:1996/AMD3:2021
- Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 715: Telecommunication networks, teletraffic and operation
- 2021-09-02
- IEC 60050-705:1995/AMD7:2021
- Amendment 7 - International Electrotechnical Vocabulary (IEV) - Part 705: Radio wave propagation
- 2021-09-02
- IEC 60050-466:1990/AMD3:2021
- Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 466: Overhead lines
- 2021-09-02
- IEC 60050-131:2002/AMD5:2021
- Amendment 5 - International Electrotechnical Vocabulary (IEV) - Part 131: Circuit theory
- 2021-09-02
- IEC TR 62000:2021
- Guidelines for combining different single-mode fibre sub-categories
- 2021-09-02
- IEC 60335-2-74:2021
- Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
- 2021-09-02
