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IEC 61439-4:2023 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61439-4:2023 EXV includes the content of the references made to IEC 61439-1:2020. IEC 61439-4:2023 defines the specific requirements of ACS as follows…

IEC 61439-4:2023 defines the specific requirements of ACS as follows: - assemblies for which the rated voltage does not exceed 1 000 V in case of AC or 1 500 V in case of DC; - assemblies where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above; - assemblies intended for use on construction sites, both indoors…

This pack contains IEC 61439-4:2023 EXV and IEC 61439-4:2023 RLV. IEC 61439-4:2023 defines the specific requirements of ACS as follows: - assemblies for which the rated voltage does not exceed 1 000 V in case of AC or 1 500 V in case of DC; - assemblies where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified…

This document specifies an ion chromatographic method for the determination of the acetate and citrate content of materials used to produce wrappings for cigarette filters, cigarettes, and other tobacco products.

IEC 62631-3-2:2023 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 62631-3-2:2023 edition 2.0 and the previous IEC 62631-3-2:2015 edition 1.0. Furthermore, comments from IEC TC 112 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of…

This document provides the specifications and specifies the requirements for the designation of three types of glass namely crystal glass, crystal, and lead crystal, according to their chemical composition, density and refractive index. This document also describes the test methods to measure the respective characteristics of these crystal glass types. Given the potential lead contamination…

This document specifies an inductively coupled plasma atomic emission spectrometric method for the determination of the contents (mass fraction) of aluminium and vanadium in 6Al-4V titanium alloys. This method is applicable to all kinds of 6Al-4V titanium alloys specified in ISO 23515 (designation of titanium alloys) for aluminium in the range from 4,70 % to 7,00 % and vanadium in the range from…

IEC TS 63291-2:2023 defines aspects on planning, specification, and execution of multi-vendor HVDC grid systems also referred to as HVDC grids. The terms "HVDC grid systems" or "HVDC grids" are used in this document to describe HVDC systems for power transmission having more than two HVDC stations connected to a common DC circuit. The DC circuit can be of radial or meshed…

IEC TS 63291-1:2023 contains guidelines on planning, specification, and execution of multi-vendor HVDC grid systems also referred to as HVDC grids. The terms "HVDC grid systems" or "HVDC grids" are used in this document to describe HVDC systems for power transmission having more than two HVDC stations connected to a common DC circuit. The DC circuit can be of radial or meshed…

This document describes a data format for the exchange of quality information: —    the data format is distinguished by a transparent structure that is easy to edit; —    it is flexible, space saving and easily be copied and compacted; All files are language independent because of the allocation of an explicit key to a language independent field, the content of which can be translated into any…