Information technology — Biometrics — Overview and application
This document describes the history and purpose of biometrics, the various biometric technologies in general use today (for example, fingerprint recognition, face recognition and iris recognition) and the architecture of the systems and the system processes that allow automated recognition using those technologies. It provides information on the application of biometrics in various business…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-9:2024 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60704-2-9:2024 applies to electric hand-held hairdryers for household and similar use supplied from mains,…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-9:2024 is available as IEC 60704-2-9:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60704-2-9:2024 applies to electric hand-held hairdryers for household and similar use supplied from mains, which operate with a flow of air. These particular requirements can also be applied…
Household and similar electrical appliances - Test code for the determination of airborne acoustical...
IEC 60704-2-9:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 60704-2-9:2024 EXV includes the content of the references made to IEC 60704-1:2021.
IEC 60704-2-9:2024 applies to electric hand-held hairdryers for…
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular...
IEC 61558-2-8:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-8:2024 EXV includes the content of the references made to IEC 61558-1:2017.
IEC 61558-2-8:2024 deals with the safety of bell and chime…
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-9: Particular...
IEC 61558-2-9:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-9:2024 EXV includes the content of the references made to IEC 61558-1:2017.
IEC 61558-2-9:2024 deals with the safety of transformers for…
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particula...
IEC 61558-2-10:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-10:2024 EXV includes the content of the references made to IEC 61558-1:2017.
IEC 61558-2-10:2024 deals with the safety of separating…
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-23: Particula...
IEC 61558-2-23:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-23:2024 EXV includes the content of the references made to IEC 61558-1:2017.
IEC 61558-2-23:2024 deals with the safety of transformers for…
Surface chemical analysis — X-ray photoelectron spectroscopy — Method of intensity calibration for q...
This document specifies a procedure by which the intensity scale of an X-ray photoelectron spectrometer that employs a concentric hemispherical analyser can be calibrated using low-density poly(ethylene). This document is applicable to instruments using quartz-crystal-monochromated Al Kα X-rays and is suitable for all instrument geometries. The intensity calibration is only valid for the specific…
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular...
IEC 61558-2-8:2024 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61558-2-8:2024 deals with the safety of bell and chime transformers and power supply units incorporating bell…
