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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…

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 provides a set of common supplementary requirements for the most frequently used materials in upstream oil and gas piping systems. This document is applicable to offshore and onshore production facilities, processing and gas liquefaction plants. The materials covered in this document are intended to be used in the following piping systems services: —     category D, category M,…

This document specifies the refilling interface for the NOx reduction agent AUS 32 in conformance with ISO 22241-1, which is needed to operate converters with a selective catalytic reduction (SCR) exhaust treatment system. This document specifies the minimum functional and geometric requirements of an open refilling system, in order to ensure compatibility between the on-board refilling system…

This document defines general terms and film growth processes for atomic layer deposition (ALD). ALD technique is classified into conventional time separated ALD and spatial ALD according to the separation between sequential surface reactions of precursors on substrate. Besides planar substrate, ALD can be used for coating on micro-nano particles, which is developed as powder ALD. Some energy…

This document specifies the framework, concepts, and methodology for securing JPEG 2000 codestreams. The scope of this document is to define: 1)     a normative codestream syntax containing information for interpreting secure image data; 2)     informative examples of JPSEC tools in typical use cases; 3)     informative guidelines on how to implement security services and related metadata. The…

This document defines terms related to date and time, from fundamental concepts to those of their usage and representation.

This document specifies the framework, concepts, and methodology for securing JPEG 2000 codestreams. The scope of this document is to define: 1) a normative codestream syntax containing information for interpreting secure image data; 2) informative examples of JPSEC tools in typical use cases; 3) informative guidelines on how to implement security services and related metadata. The…

This document defines the quality assurance (QA) requirements for the establishment and implementation of product QA programmes for projects covering mission definition, design, development, production and operations of space systems, including disposal. It is applicable to the customer-supplier relationship for space products to the extent agreed by both parties.

This document gives a curated, factual knowledge about the past at a human scale. It specifies all information required for the exchange and integration of heterogeneous scientific and scholarly documentation about the past at a human scale and the available documented and empirical evidence for this. A more detailed and useful definition can be articulated by defining both the intended scope, a…