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IEC TR 61850-90-4:2020(E), which is a Technical Report, is intended for an audience familiar with network communication and/or IEC 61850-based systems and particularly for substation protection and control equipment vendors, network equipment vendors and system integrators. This document focuses on engineering a local area network limited to the requirements of IEC 61850-based substation…

This document provides the operating rules of the BNQ regarding the Healthy Enterprise certification program. It was prepared taking into consideration the latest versions of international accreditation requirements applicable to organizations providing audit and certification of management systems. The Healthy Enterprise certification program is available to any type of enterprise or…

This document defines performance requirements, methods of testing and marking requirements for fire pump relief valves intended to rapidly relieve the excessive water pressure in the supply piping for standpipe systems or sprinkler systems or both. Performance and test requirements for other auxiliary components or attachments to fire pump relief valves are not covered by this standard.

IEC 60840:2020 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 60840:2020 specifies test methods and requirements for power cable systems, cables alone and accessories alone, for…

IEC 60840:2020 specifies test methods and requirements for power cable systems, cables alone and accessories alone, for fixed installations and for rated voltages above 30 kV (Um = 36 kV) up to and including 150 kV (Um = 170 kV). The requirements apply to single-core cables and to individually screened three-core cables and to their accessories for usual conditions of installation and operation,…

ISO/IEC TR 11801-9908:2020 (E) which is a Technical Report, provides a listing of the data centre application options currently available or in process of standardization utilizing duplex and parallel optical fibre channels. It also identifies migration considerations when upgrading to higher speed applications.

This document specifies terms and definitions that are related to air quality (see 3.1.1.1). These are either general terms or are used in connection with the sampling (see 3.3.3.1) and measurement of gases, vapours (see 3.1.5.8) and airborne particles (see 3.2.2.1) for the determination of air quality. The terms included are those that have been identified as being fundamental because their…

IEC 61010-2-040:2020 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 61010-2-040:2020 specifies safety requirements for electrical equipment intended for sterilization, washing,…

1.1 This document specifies a method for determining Charpy impact properties of plastics from force-deflection diagrams. Different types of rod-shaped test specimens and test configurations, as well as test parameters depending on the type of material, the type of test specimen and the type of notch, are defined in ISO 179-1. Dynamic effects such as load-cell/striker resonance, test specimen…

IEC 62496-4-214: 2020 defines the standard interface dimensions for a terminated waveguide optical circuit board (OCB) assembly (referred to simply as "assembly") using single-row thirty-two-channel connectors for polymer waveguides connected with a symmetric PMT connector.