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These requirements cover automatically operated roof vents for smoke and heat that fall into two general categories: mechanically-opened and gravity-opened. Mechanically-opened vents consist primarily of a body frame, one or more damper covers and hatches, and operating mechanisms which generally include a heat responsive device and spring(s). Gravity-opened vents consist primarily of a body…

Les présentes exigences portent sur les aérateurs exutoires à commande automatique pour la fumée et la chaleur, qui se divisent en deux catégories générales : les aérateurs à ouverture mécanique et les aérateurs à ouverture gravitaire. Les aérateurs à ouverture mécanique comprennent essentiellement un bâti, au moins un couvercle de registre et au moins une trappe et des mécanismes de commande…

IEC 61300-3-53:2020 defines the encircled angular flux measurement of multimode waveguide light sources, in which most of the transverse modes are excited. The term "waveguide" is understood to include both channel waveguides and optical fibres but not slab waveguides. The applicable fibre types are the followings: - A1 specified in IEC 60793-2-10; - A3 specified in IEC 60793-2-30…

L'IEC 61300-3-53:2020 définit la mesure du flux angulaire inscrit de sources de rayonnement lumineux dotées d’un guide d’ondes multimodal, pour lequel la plupart des modes transversaux sont excités. On considère que le terme "guide d’ondes" inclut à la fois des guides d’ondes de canal et des fibres optiques, mais pas des guides d’ondes rectangulaires rigides. Les types de fibres…

This document gives guidelines for organizations on how to manage the risks arising from COVID-19 to protect work-related health, safety and well-being. This document is applicable to organizations of all sizes and sectors, including those that: a) have been operating throughout the pandemic; b) are resuming or planning to resume operations following full or partial closure; c) are re-…

This document specifies requirements for implementations of the C++ programming language. The first such requirement is that they implement the language, so this document also defines C++. Other requirements and relaxations of the first requirement appear at various places within this document. C++ is a general purpose programming language based on the C programming language as described in ISO/…

This document specifies the key requirements of a quality open source license compliance program in order to provide a benchmark that builds trust between organizations exchanging software solutions comprised of open source software.

IEC 60947-6-2:2020 This document applies to control and protective switching devices (or equipment) (CPS), the main contacts of which are intended to be connected to circuits of rated voltage not exceeding 1 000 V AC or 1 500 V DC. It covers control and protective switching device (CPS): - which provides protective and control functions for circuits and motors; - where its control function is…

IEC 60947-6-2:2020 s’applique aux appareils (ou au matériel) de connexion de commande et de protection (ACP), dont les contacts principaux sont destinés à être reliés à des circuits dont la tension assignée n’est pas supérieure à 1 000 V en courant alternatif ou 1 500 V en courant continu. Il traite des appareils de connexion de commande de protection (ACP): qui offrent des fonctions de…

IEC 61828:2020 - provides definitions for the transmitted field characteristics of focusing and nonfocusing transducers for applications in medical ultrasound; - relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers; - gives measurement methods for obtaining defined field characteristics of focusing and nonfocusing…