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Le présent document spécifie une méthode pour déterminer la teneur totale des cyclosiloxanes suivants dans les produits chimiques pour l’industrie du tannage du cuir: —     l’octaméthylcyclotétrasiloxane (D4); —     le décaméthylcyclopentasiloxane (D5); —     le dodécaméthylcyclohexasiloxane (D6). Cette méthode nécessite de recourir à la chromatographie en phase gazeuse (CPG) couplée à un…

This document specifies a method for determining the total content of the following cyclosiloxanes in chemicals for the leather tanning industry: —     octamethylcyclotetrasiloxane (D4); —     decamethylcyclopentasiloxane (D5); —     dodecamethylcyclohexasiloxane (D6); This method requires the use of gas chromatography (GC) equipped with a single quadrupole mass spectrometer (MS) to identify and…

Le présent document contient les dispositions relatives à la conception géotechnique qui s'appliquent à une vaste gamme de structures en mer, plutôt qu'à un type particulier de structure. Le présent document décrit les méthodes développées principalement pour la conception des fondations superficielles avec un rapport entre longueur enfouie (L) et diamètre (D) L/D < 0,5, des…

This document contains provisions for geotechnical engineering design that are applicable to a broad range of offshore structures, rather than to a particular structure type. This document outlines methods developed for the design of shallow foundations with an embedded length (L) to diameter (D) ratio L/D < 0,5, intermediate foundations, which typically have 0,5 ≤ L/D ≤ 10 (see Clause 7), and…

IEC 62657-4:2025 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 62657-4:2025 specifies a concept and methods for central coordination (CC) of automation applications using…

IEC 62657-2:2025 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 62657-2:2025 specifies: – the fundamental assumptions, concepts, parameters, and procedures for wireless…

IEC 62657-4:2025 specifies a concept and methods for central coordination (CC) of automation applications using wireless communications to extend the coexistence management according to IEC 62657-2. It establishes system elements, interfaces and relationships for a central coordination. Functions, data, and data exchange for assessing and maintaining the coexistence state are specified. This…

IEC 62657-2:2025 specifies: – the fundamental assumptions, concepts, parameters, and procedures for wireless communication coexistence; – specifies coexistence parameters and how they are used in an application requiring wireless coexistence; – provides guidelines, requirements, and best practices for wireless communication's availability and performance in an industrial automation plant…

This document specifies the minimum quality characteristics of hydrogen fuel as distributed for utilization in residential, commercial, industrial, vehicular and stationary applications. This document is applicable to hydrogen fuelling applications, which are listed in Table 2.

This document specifies minimum requirements for pressure relief devices intended for use on hydrogen fuelled vehicle fuel containers that comply with ISO 19881, IEC 62282-4-101, CSA/ANSI HGV 2, EC79/EU406, SAE J2579, UN ECE R134, or the UN GTR No. 13. The applicability of this document is limited to thermally activated pressure relief devices installed on fuel containers containing gaseous…