Rechercher

Scope 1.1 This standard sets forth minimum requirements for the following types of devices for engine fuel system applications intended for use with liquefied petroleum gas (LP-Gas), natural gas, and/or manufactured gas. a) Automatic shutoff valves – electrically operated or vacuum actuated (mechanical); b) Combination manual/automatic shutoff valves – electrically operated or vacuum…

Domaine d’application 1.1 Cette norme énonce les exigences minimales pour les types de dispositifs suivants pour les applications de système d’alimentation en carburant de moteur destinés à être utilisés avec du gaz de pétrole liquéfié (GPL), du gaz naturel ou du gaz fabriqué. a) soupapes d’arrêt automatique – à commande électrique ou à dépression (mécanique); b) soupapes d’arrêt manuel/…

IEC 63098-2:2022 provides the required performance with reliability and quality assurance of radio-over-fiber-based fronthaul networks for railway communication networks between trains and tracksides, as well as a design guide for network configuration. A high-speed train communication network comprises two parts: a back-end network and wireless access system to deliver data to train cars. In…

IEC 63098-3:2022 This part of IEC 63098 provides the specifications of the RoF interface connecting the central station (CS) with the remote radar heads (RRHs) in a remote radar system, along with the necessary information to ensure compatibility between vendors and, hence, choose appropriate systems to cover any type of RoF systems for delivering the signal.A remote radar system generally…

This document specifies two procedures for the preparation of laboratory sheets prior to measuring optical properties. One is the preparation of pads in a Büchner funnel using a filter paper or a wire screen and the other one is the preparation of laboratory sheets in a standard sheet former (conventional or Rapid Köthen). This document is applicable to all wood pulps and to most other types of…

Le présent document spécifie deux modes opératoires pour la préparation des feuilles de laboratoire préalablement au mesurage des propriétés optiques. L’un consiste à préparer des galettes dans un entonnoir Büchner en utilisant un papier-filtre ou une toile, l'autre à préparer des feuilles de laboratoire dans une formette standard (conventionnelle ou Rapid-Köthen). Le présent document est…

This document gives general information and definitions concerning quantities, systems of quantities, units, quantity and unit symbols, and coherent unit systems, especially the International System of Quantities (ISQ). The principles laid down in this document are intended for general use within the various fields of science and technology, and as an introduction to other parts of this…

IEC 61558-2-20:2022 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 61558-2-20:2022 deals with the safety of small reactors for general applications. Small reactors incorporating…

ISO 80000-1:2022 This document gives general information and definitions concerning quantities, systems of quantities, units, quantity and unit symbols, and coherent unit systems, especially the International System of Quantities (ISQ). The principles laid down in this document are intended for general use within the various fields of science and technology, and as an introduction to other parts…

IEC 60601-2-43:2022 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 60601-2-43:2022 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of both FIXED and MOBILE X RAY EQUIPMENT…