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IEC 60947-5-8:2020 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 60947-5-8:2020 specifies requirements for three-position enabling switches. These switches are used as…

This document specifies, for acrylonitrile-butadiene rubbers (NBRs): — physical and chemical tests on raw rubbers; — standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics. The mixing preferred method is the single stage mixing with LIM (laboratory internal mixer).

This document specifies the geometry and method of use (installation and operating conditions) of nozzles and Venturi nozzles when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit. This document also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in ISO 5167‑1. This…

This document specifies methods of determining the stage?discharge relationship for gauging stations. It specifies an accuracy for defining the stage?discharge relationship based on a sufficient number of discharge measurements, complete with corresponding stage measurements. This document considers stable and unstable channels and includes brief descriptions of the effects on the stage?discharge…

1 Scope 1.1 These minimum requirements cover the following types of anhydrous ammonia and liquefied petroleum gas (LP-Gas) valves that are used to control the flow of liquid and/or vapor into and out of containers, or in piping systems between containers, or between containers and utilization equipment, and are for use at temperatures within the range of -40 °C (-40 °F) to 55 °C (130 °F): a…

1.1 Les présentes exigences minimales couvrent les types suivants de soupapes pour ammoniac anhydre et de gaz de pétrole liquéfié (GPL) qui sont utilisées pour contrôler le débit de liquide et/ou de vapeur dans et hors des conteneurs, ou dans les systèmes de tuyauterie entre les conteneurs, ou entre les conteneurs et l’équipement d’utilisation, et sont destinées à être utilisées à des…

IEC TS 62910:2020 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 TS 62910:2020 provides a test procedure for evaluating the performance of Under Voltage Ride-Through (UVRT)…

IEC TS 62910:2020 is available as IEC TS 62910:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC TS 62910:2020 provides a test procedure for evaluating the performance of Under Voltage Ride-Through (UVRT) functions in inverters used in utility-interconnected Photovoltaic (PV) systems.…

IEC 60601-1-9:2007+A1:2013+A2:2020 The objective of this collateral standard is to improve the environmental impact for the entire range of medical electrical equipment, taking into account all stages of the product life cycle: - product specification; - design; - manufacturing; - sales, logistics, installation; - use; - end of life management. This means protecting the environment and…

IEC 60601-1-12:2014+A1:2020 constitutes a collateral standard to IEC 60601-1: Medical electrical equipment - Part 1: General requirements for basic safety and essential performance hereafter referred to as the general standard. Medical practice is increasingly using medical electrical equipment and medical electrical systems for monitoring, treatment or diagnosis of patients in the emergency…