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Le présent document spécifie les principes et les méthodes pour l'estimation de l'endurance thermique des caoutchoucs d'après les résultats d'une exposition à des températures élevées pendant de longues périodes. Deux méthodes sont spécifiées (voir l'introduction): —    l'une utilisant l'équation d'Arrhenius; —    l'autre utilisant l'équation de…

IEC 60904-2:2023 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60904-2:2023 edition 4.0 and the previous IEC 60904-2:2015 edition 3.0. Furthermore, comments from IEC TC 82 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the…

IEC 60904-2:2023 gives requirements for the classification, selection, packaging, marking, calibration and care of photovoltaic reference devices. This document applies to photovoltaic (PV) reference devices that are used to measure the irradiance of natural or simulated sunlight for the purpose of quantifying the electrical performance of photovoltaic devices (cells, modules and arrays). It does…

L'IEC 60904-2:2023 donne les exigences relatives à la classification, à la sélection, au conditionnement, au marquage, à l’étalonnage et aux précautions d’utilisation des dispositifs photovoltaïques de référence. Le présent document s’applique aux dispositifs photovoltaïques (PV) de référence utilisés pour mesurer l’irradiance de la lumière solaire naturelle ou simulée afin de quantifier les…

This document establishes requirements and test procedures for determining the performance of spark arrestor exhaust systems of multi position small engines used in portable applications, such as chain-saws, brush-cutters, grass-trimmers, pole-mounted pruners, edgers and similar shaft-drive machines, hedge trimmers and hand-held and back-pack blowers. It is not applicable to spark arrestors used…

This document provides a consolidated set of rules and associated guidelines as found and defined in the existing parts of the ISO/IEC 15944 series. NOTE      Not all parts of the ISO/IEC 15944 series have rules, that is ISO/IEC 15944-6, ISO/IEC 15944-14 and ISO/IEC 15944-20.

Le présent document établit les exigences et les méthodes d'essai permettant de déterminer les performances des systèmes d'échappement avec pare-étincelles des petits moteurs multi-positions utilisés dans des applications portatives, comme les scies à chaîne, les débroussailleuses, les coupe-herbe, les élagueuses montées sur perches, les coupe-bordures et autres machines similaires…

This document provides a consolidated set of rules and associated guidelines as found and defined in the existing parts of the ISO/IEC 15944 series. NOTE Not all parts of the ISO/IEC 15944 series have rules, that is ISO/IEC 15944-6, ISO/IEC 15944-14 and ISO/IEC 15944-20.

This document specifies two methods for the determination of co-monomer contents of polyethylene products by solution state 13C-NMR spectrometry (nuclear magnetic resonance spectrometry): —    method A: inverse gated decoupling method. —    method B: insensitive nuclei enhanced by polarization transfer method; This document is applicable to copolymers of ethylene having a content of other 1-…

This document shows the results of investigating the guideline for determining the threshold of the evaluation result on an electric inertial chassis dynamometer that electrically controls the amount of inertia using fuel consumption. This document is applicable when the running resistance force of a chassis dynamometer is set in accordance with ISO 18580.