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This standard specifies the characteristics of biomethane at the injection point in the natural gas distribution or transmission system to ensure its compatibility with the characteristics of the natural gas present in the system into which it is injected. It applies to biomethane produced from biogas derived from anaerobic decomposition, no matter the source of the organic material. NOTE —…

IEC TS 60079-44:2023, which is a Technical Specification, is to provide guidance to establish recommended minimum criteria to determine roles, establish expectations of the necessary skills and evidence of competence to assess and manage the competence of personnel conducting work in or associated with hazardous areas. The purpose of this document is to provide guidance to establish: •…

IEC 61300-2-11:2023 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 61300-2-11:2023 is to ensure that the captivation or the attachment of the cable to the fibre optic devices or…

IEC 61300-2-6:2023 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 61300-2-6:2023 describes a test to ensure the coupling mechanism of a connector set or connector and device…

Scope 1.1 These requirements apply to portable germicidal equipment intended to expose the air and surfaces within an unoccupied area with uncontained ultraviolet (UV) energy. These requirements address equipment intended to remain stationary while in operation, and intended for use by ordinary persons. The equipment may also produce visible light. 1.2 In this Standard, the UV overexposure…

Scope 1.1 These requirements apply to ultraviolet germicidal irradiation (UVGI) equipment and systems intended for installation and use in accordance with the U.S. National Electrical Code (NEC), NFPA 70 and in accordance with the Canadian Electrical Code, Part I (CEC), CSA C22.1. These requirements cover: a) UV Germicidal Equipment – These devices emit uncontained UV energy into the…

This document gives guidance on how to secure physical documents for specifying entities of physical documents. It establishes a procedure for security design, which includes: —     risk assessment; —     determination of document classes; —     introduction of security features; —     security evaluation; —     document risk mitigation. This document is applicable to secure physical documents…

IEC 62772:2023 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 62772:2023 applies to composite hollow core station post insulators consisting of a load-bearing insulating tube (…

IEC 62772:2023 applies to composite hollow core station post insulators consisting of a load-bearing insulating tube (core) made of resin impregnated fibres, insulating filler material (solid, liquid, gaseous – pressurized or unpressurized), a housing (outside the insulating tube) made of polymeric material (for example silicone or ethylene-propylene) and fixing devices at the ends of the…

This document specifies how a preliminary welding procedure specification (pWPS) is qualified by welding procedure tests. This document defines the conditions for the execution of welding procedure tests and the range of qualification for welding procedures for all welding operations within the qualification of this document. Two classes of welding procedure tests are given in order to permit…