Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol sp...
IEC 61158-4-21:2023 describes:
procedures for the timely transfer of data and control information from one data link user entity to a peer user entity, and among the data link entities forming the distributed data link service provider;
procedures for giving communication opportunities based on ISO/IEC/IEEE 8802‑3 MAC, with provisions for nodes to be added or removed during normal operation;…
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 4-21: Spécificatio...
L'IEC 61158-4-21:2023 décrit:
des procédures de transfert en temps opportun de données et d’informations de commande d’une entité utilisateur de liaison de données à une entité utilisateur homologue ainsi qu’entre entités de liaison de données qui constituent le fournisseur de services distribués de la liaison;
des procédures offrant des moyens de communication fondées sur la commande d’…
Geotechnical investigation and testing — Field testing — Part 5: Prebored pressuremeter test
This document is applicable to pressuremeter tests using cylindrical flexible probes placed in pre-existent boreholes using testing procedures other than the Menard procedure.
Pressuremeter tests following the Menard procedure are provided in ISO 22476-4.
NOTE A high-pressure flexible pressuremeter probe which contains transducers for the measurement of radial displacements is also known…
Facility management — Influencing organizational behaviours for improved facility outcomes
This document gives guidance on the ways in which a facility management (FM) organization can influence organizational behaviours to achieve improved facility outcomes, including how it can engage, empower and influence users, service providers and other interested parties with one another for improved outcomes and user experience while interfacing with the built environment.
Consequently, and…
Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1...
This document defines a measurement method for the evaluation of distortions in the macroscopic uniformity of printed areas that are oriented in the horizontal and vertical direction, such as streaks and bands.
It provides requirements for the layout of the test form, the use of a colour measurement device taking measurements in a 2D sampling grid, and the formula to compute the Macro-Uniformity-…
Reconnaissance et essais géotechniques — Essais en place — Partie 5: Essai au pressiomètre en préfor...
Ce document s’applique aux essais au pressiomètre utilisant des sondes flexibles cylindriques placées dans des trous de forage pré-existants, réalisés selon des procédures autres que la procédure Ménard.
Les essais au pressiomètre selon la procédure Ménard sont disponibles dans l’ISO 22476-4.
NOTE Une sonde pressiométrique flexible haute pression qui comporte des capteurs destinés à la…
Facility management — Influencer les comportements organisationnels pour obtenir de meilleurs résult...
Le présent document fournit des recommandations sur les différentes manières dont un organisme de facility management (FM) peut influencer les comportements organisationnels afin d’obtenir de meilleurs résultats en matière d’installations, y compris la façon dont le FM peut impliquer, responsabiliser et influencer les utilisateurs, les fournisseurs de services et d’autres parties intéressées…
Cooking fume extractors - Methods for measuring performance
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…
Cooking fume extractors - Methods for measuring performance
IEC 61591:2023 applies to cooking fume extractors incorporating a fan for the recirculation or extraction mode situated in a household kitchen. It can also be used for cooking fume extractors where the fan is mounted separately from the appliance, but controlled by the appliance when the fan is defined in the technical documentation (e.g. name plate data) and instructions for installation. This…
