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IEC 61820-3-4:2023 specifies protective provisions for the operation of lamp systems powered by series circuits in aeronautical ground lighting. The protective provisions described here refer only to secondary supply systems for loads that are electrically separated from the series circuit. This document specifies the level of SELV, and alternatively PELV, under consideration of additional…

1 Scope 1.1 General 1.1.1 Application This Standard applies to hyperbaric chambers that have as their primary function the subjection of humans to pressure environments exceeding 1 atmosphere absolute, such as those required in a) diving operations; b) work under compressed-air conditions; c) medical treatment; d) training; and e) research. 1.1.2 Minimum requirements This Standard…

This document is intended to be used alongside ISO/TR 12295, ISO 11226, the ISO 11228 series and ISO/TR 23476 in the construction sector. This document (although the examples shown refer only to the civil construction sector) gives information on how existing standards can be used in a global sector, such as construction. Where biomechanical overload is a relevant aspect, albeit with different…

IEC 62769-100:2023 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 62769-100:2023 specifies an FDI®[1] profile of IEC 62769 for Generic Protocols. That means that all interfaces…

IEC 61591:2023 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 61591:2023 edition 3.0 and the previous IEC 61591:2019 edition 2.0. Furthermore, comments from IEC SC 59K experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content…

This document provides an overview of ISO 9241 software ergonomic standards in the form of executive summaries of these standards, in particular the parts in the ISO 9241-1XX family of documents. In addition, it provides executive summaries for ISO 9241-11, ISO 9241-210 and ISO 9241-220, which have specific relevance to the design of software-based interactive systems. This document is intended…

IEC 60350-1:2023 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 60350-1:2023 specifies methods for measuring the performance of electric cooking ranges, ovens, steam ovens, and…

IEC 61156-1:2023 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 61156-1:2023 specifies the definitions, requirements and test methods of multicore, symmetrical pair and quad…

This document defines the activities related to refrigerating systems according to ISO 5149‑1, ISO 5149‑2, ISO 5149‑3 and ISO 5149‑4 and other equivalent standards, such as EN 378‑1, EN 378‑2, EN 378‑3, EN 378‑4 and the associated competence profiles. It also establishes the competence criteria for persons who carry out these activities. Activities concerning electricity are excluded. NOTE 1   As…

1 Scope 1.1 General This Standard covers polyethylene (PE) pipe and tubing, and fittings for use in transporting potable or non-potable water, or other applications such as wastewater forcemains, reclaimed water, conduit, golf or commercial irrigation, or water-based ground source geothermal systems, in either buried or above- ground installations. 1.2 Requirements This Standard specifies…