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IEC 60947-4-1:2018 is available as IEC 60947-4-1:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60947-4-1:2018 is applicable to the following equipment: - electromechanical contactors and starters including motor protective switching device (MPSD); - actuators of contactor relays…

This document gives guidelines for the content, security, issuance and examination of physical tax stamps and marks used to indicate that the required excise duty or other applicable taxes identified with an item have been paid and to signify that the item is legitimately on the intended market. Specifically, this document gives guidance on: — defining the functions of a tax stamp…

IEC 61167:2018+A1:2018 specifies the performance requirements for metal halide lamps for general lighting purposes. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. a) A set of new lamp data sheets has been…

IEC 61557-12:2018 is available as IEC 61557-12:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61557-12:2018 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally…

IEC 61557-12:2018 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 61557-12:2018 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor…

IEC 60974-14:2018 specifies requirements for the verification of arc welding and external monitoring equipment. This document also serves for practical implementation of the verification procedure for arc welding equipment. This document can be applied at the time of installation and any other times or intervals the user deems appropriate to ensure the equipment is capable of operating to the…

This document provides standard procedures for the collection, handling and storage of soil for subsequent biological testing under aerobic conditions in the laboratory. It applies to the collection, handling and storage for assessing the effects of soil on microorganisms, invertebrates (e.g. survival, reproduction, growth, behaviour) and plants (e.g. development, growth). This document is not…

This document specifies a file format which is capable of storage, interchange, management, editing and presentation of multiple sensorial media contents based on the ISO base media file format. The file format provides the overall structure for storing multiple sensorial media contents.

This document specifies a file format which is capable of storage, interchange, management, editing and presentation of multiple sensorial media contents based on the ISO base media file format. The file format provides the overall structure for storing multiple sensorial media contents.

This document specifies a method for the determination of hydrogen sulfide content in working field natural gas of upstream area by laser absorption spectroscopy. The analytical range expressed as mole fraction is 10 × 10−6 to 20 %. The analytical range can be expanded to higher content with specific instrument requirements.