Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCSs)
IEC 60825-2:2021 provides requirements and specific guidance for the safe operation and maintenance of optical fibre communication systems (OFCSs). In these systems, optical power is possibly accessible outside the confines of the transmitting equipment and/or at great distance from the optical source.
This document requires the assessment of hazard level at each accessible location of the OFCS…
ISO/IEC 20924:2021 is available as ISO/IEC 20924:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
ISO/IEC 20924:2021 (E) provides a definition of Internet of Things along with a set of terms and definitions. This document is a terminology foundation for the Internet of Things.
Jewellery and precious metals — Determination of gold — Cupellation method (fire assay)
This document specifies a cupellation method (fire assay) for the determination of gold on a material considered homogeneous. The gold content of the sample lies preferably between 100 and 999,5 parts per thousand (‰) by weight. Fineness above 999,5 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093).
The procedure is applicable to most types of gold samples. Some…
Household and similar electrical appliances - Safety - Part 2-115: Particular requirements for skin ...
IEC 60335-2-115:2021 deals with the safety of electric appliances for skin beauty care of persons and intended for household, commercial and similar purposes, their rated voltage being not more than 250 V.
Dual supply appliances, either mains-supplied or battery-operated, are regarded as battery-operated appliances when operated in the battery mode.
Examples of appliances that are within the…
Information technology — Extensible biometric data interchange formats — Part 6: Iris image data
This document specifies:
— generic extensible data interchange formats for the representation of iris image data: a tagged binary data format based on an extensible specification in ASN.1 and a textual data format based on an XML schema definition that are both capable of holding the same information,
— examples of data record contents,
— application specific requirements,…
Information technology - Extensible biometric data interchange formats - Part 6: Iris image data
This document specifies:
— generic extensible data interchange formats for the representation of iris image data: a tagged binary data format based on an extensible specification in ASN.1 and a textual data format based on an XML schema definition that are both capable of holding the same information,
— examples of data record contents,
— application specific requirements,…
Household and similar electrical appliances - Safety - Part 2-53: Particular requirements for sauna ...
IEC 60335-2-53:2011+A1:2017+A2:2021 deals with the safety of electric sauna heating appliances and infrared emitting units having a rated power input not exceeding 20 kW, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. The appliances covered by this standard are intended for use in the home and in public saunas located in blocks of flats,…
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 2: B...
IEC 61937-2:2021 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 61937-2:2021 specifies the digital audio interface to convey non-linear PCM encoded audio bitstreams applying IEC…
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 2: B...
IEC 61937-2:2021 is available as IEC 61937-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61937-2:2021 specifies the digital audio interface to convey non-linear PCM encoded audio bitstreams applying IEC 60958-1 and IEC 60958-3. This document specifies burst-info, which defines content…
