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Produits isolants thermiques pour les installations industrielles — Détermination du coefficient de dilatation thermique linéique à des températures inférieures à la température ambiante

ISO/IEC 21823-4:2022 specifies the IoT interoperability from a syntactic point of view. In ISO/IEC 21823-1: Framework [2], five facets are described for IoT interoperability, i.e. transport, semantic, syntactic, behavioural and policy. In this document, the following specifications for IoT interoperability from syntactic viewpoint are included; – A principle of how to achieve syntactic…

This document specifies the composition, dimensions and mechanical properties of steel wire with a high mass fraction of carbon, generally brass coated, for reinforcing high-pressure hoses. It is applicable to multiple parallel wires, braided or spirally wrapped for reinforcement in a rubber or synthetic hose that is made to withstand a relatively high bursting pressure.

Le présent document spécifie deux méthodes d’évaluation du comportement à la fusion des polymères semi-cristallins. a) Méthode A : Tube capillaire Cette méthode repose sur l’évaluation des changements de forme du polymère. Elle est applicable à tous les polymères semi-cristallins ainsi qu’à leurs compositions. NOTE 1   La méthode A peut également être utile pour évaluer le ramollissement des…

This document specifies two methods for evaluating the melting behaviour of semi-crystalline polymers. a) Method A: Capillary tube This method is based on the changes in shape of the polymer. It is applicable to all semi-crystalline polymers and their compounds. NOTE 1   Method A can also be useful for the evaluation of the softening of non-crystalline solids. b) Method B: Polarizing microscope…

This document specifies requirements for in vitro measuring systems for self-monitoring of vitamin-K antagonist oral anticoagulation therapy, including performance, quality assurance and user training and procedures for the validation of performance by the intended users under actual and simulated conditions of use. This document applies solely to prothrombin time measuring systems used by lay…

IEC 60300-3-4:2022 gives guidance on specifying dependability requirements and collating these requirements in a specification, together with a list of the means of assuring the achievement of the dependability requirements. The guidance provided includes: • specifying quantitative and qualitative reliability, maintainability, supportability and availability requirements; • advising acquirers…

L'IEC 60300-3-4:2022 fournit des recommandations relatives à la spécification des exigences de sûreté de fonctionnement et au rassemblement de ces exigences dans une spécification, ainsi qu'une liste des moyens permettant d’assurer la réalisation des exigences de sûreté de fonctionnement. Les recommandations fournies comprennent: • la spécification d’exigences quantitatives et…

IEC 62714-5:2022 Engineering processes of technical systems and their embedded automation systems are executed with increasing efficiency and quality. Especially since the project duration tends to increase as the complexity of the engineered system increases. To solve this problem, the engineering process is more often being executed by exploiting software based engineering tools exchanging…