Communication networks and systems for power utility automation - Part 5: Communication requirements...
IEC 61850-5:2013+AMD1:2022 applies to power utility automation systems with the core part of substation automation systems (SAS); it standardizes the communication between intelligent electronic devices (IEDs) and defines the related system requirements to be supported. The major technical changes with regard to the previous edition are as follows:
- extension from substation automation systems…
Information technology — Data centre facilities and infrastructures — Part 30: Earthquake risk and i...
This document specifies requirements and recommendations for the type of risk assessment to be employed concerning seismic activity and earthquakes in relation to data centres. In addition, it describes design concepts that can be employed as mitigation actions within the construction and other design elements of data centres.
Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-dis...
This document specifies a method to provide a relative measure for evaluating the degree of size degradation and degree of metallization of iron ores, when reduced under conditions resembling those prevailing in shaft direct-reduction processes.
This document is applicable to lump ores and hot-bonded pellets.
Carreaux et dalles céramiques — Partie 18: Détermination de la valeur de réflectance lumineuse (LRV)
L'objectif du prèsent document est de définir une méthode d'essai permettant de déterminer la valeur de réflectance lumineuse (LRV) des carreaux céramiques, y compris celle des carreaux de mosaïque.
Cette méthode s'applique aux carreaux de couleur unie ou aux surfaces multicolores, avec des effets de flammes, mouchetés ou texturés, avec différents types de finition.
Gas cylinders — Inspection and maintenance of valves
This document specifies requirements for the inspection and maintenance of valves [including ball valves and valves with integrated pressure regulator (VIPRs)] for:
a) refillable transportable gas cylinders;
b) cylinder bundles;
c) pressure drums and tubes;
which convey compressed, liquefied or dissolved gases.
This document does not apply to valves for liquefied petroleum gas (LPG).
NOTE …
Ceramic tiles — Part 18: Determination of light reflectance value (LRV)
The objective of this document is to define a test method to determine the light reflectance value (LRV) of ceramic tiles, including mosaic tiles.
It is applicable to solid-coloured, multicoloured and non-uniform shade tile surfaces including tile with flame effects, speckled or textured with different types of finishing.
Bouteilles à gaz — Contrôle et maintenance des robinets
Le présent document spécifie les exigences de contrôle et de maintenance des robinets [y compris les robinets à boisseau sphérique et les robinets avec détendeur de pression intégré (VIPR)] pour:
a) les bouteilles à gaz transportables et rechargeables;
b) les cadres de bouteilles;
c) les fûts à pression et tubes;
qui acheminent des gaz comprimés, liquéfiés ou dissous.
Le présent document ne s’…
Optics and photonics — Optical coatings — Part 4: Specific test methods: abrasion, adhesion and resi...
ISO 9211 describes surface treatments of components and substrates, excluding ophthalmic optics (spectacles), by the application of optical coatings and gives a standard form for their specification. It defines the general characteristics and the test and measurement methods wherever necessary, but it is not intended to define the process method.
This document describes specific test methods of…
