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IEC 61837-2:2018 deals with standard outlines and terminal lead connections as they apply to surface-mounted devices (SMD) for frequency control and selection in ceramic enclosures, and is based on IEC 61240:2016.<br /> This edition includes the following significant technical changes with respect to the previous edition:<br /> a. revision of the figures to match the notation of the…

This document specifies the principle, apparatus, condition, sample, procedure and data processing of measuring homogeneity of infrared optical materials. It is applicable to the determination of homogeneity of infrared optical materials, such as infrared optical glass, infrared crystals and infrared ceramics, which are opaque to visible wavelengths and whose transmission optical spectra are…

This document specifies the apparatus, condition, sample, procedure and data processing of measuring bubbles and inclusions in infrared optical materials. It is applicable to the determination of bubbles and inclusions in infrared optical materials, such as infrared optical glass, infrared crystals and infrared ceramics, which are opaque to visible wavelengths and whose transmission optical…

Scope of the Certification The scope of the company's certification is defined depending on its activities. Following the initial audit, the scope is confirmed by the auditor and listed on the certificate. The activities that may be included in the scope are: timber harvesting, forest road construction, forest camp management and non-commercial silvicultural work (including the type of…

IEC 60375:2018 specifies the rules for signs and reference directions and reference polarities for electric currents and voltages in electric networks.

IEC 60375:2018 spécifie les règles relatives aux signes, sens de référence et polarités de référence des courants électriques et des tensions dans les réseaux électriques.

IEC 60276:2018 applies to carbon brushes for electrical machinery. This edition applies only to carbon brushes for commutators and slip-rings in rotating machines. Terms and definitions are relative to the brush construction (references 100’s to 500’s and parts of 900’s) and to the markings when operating on a rotating machine (references 600’s to 800’s). This new edition includes the following…

L'IEC 60276:2018 s'applique aux balais de charbon pour machines électriques. Pour le moment, il n'est applicable qu'à des balais de charbon montés sur collecteurs et bagues dans les machines tournantes. Les termes et définitions se rapportent à la construction des balais (numéros de référence 100 et suivants à 500 et suivants et parties 900 et suivantes) ainsi qu'aux…

IEC 62325-451-6:2018 specifies a UML package for the market information publication business process and its associated document contextual models, assembly models and XML schemas for use within the European-style electricity markets. This standard is based on the European-style market contextual model (IEC 62325‑351). The relevant aggregate core components (ACCs) defined in IEC 62325-351 have…

L'IEC 62325-451-6:2018 spécifie un paquetage UML pour le processus métier de publication des informations de marché, ainsi que les modèles contextuels de documents, les modèles d'assemblage et les schémas XML associés. Ces éléments sont destinés à être utilisés sur les marchés de l'électricité de style européen. La présente partie de l'IEC 62325 s'appuie sur un modèle…