Rechercher

1 Scope 1.1 Application This Standard specifies requirements for the selection and installation of backflow preventers. Additional information on how backflow due to back siphonage and back pressure occurs, and how to select and apply specific devices, is included in Annexes A, B, and C. 1.2 Exclusions 1.2.1 Product exclusions This Standard does not cover a) construction requirements or…

1 Domaine d’application 1.1 Ces exigences s’appliquent à l’équipement à moteur pour la distribution du gaz de pétrole liquéfié dans le réservoir de stockage du carburant d’un véhicule où le gaz est principalement utilisé comme carburant du moteur. 1.2 Les caractéristiques électriques des distributeurs à moteur sont décrites : a) Aux États-Unis : UL 1238, Standard for Control Equipment for…

Scope 1.1 These requirements cover an energy storage system (ESS) that is intended to receive and store energy in some form so that the ESS can provide electrical energy to loads or to the local/area electric power system (EPS) when needed. Electrochemical, chemical, mechanical, and thermal ESS are covered by this Standard. The ESS shall be constructed either as one unitary complete piece of…

Domaine d’application 1.1 Ces exigences concernent un système de stockage de l’énergie (ESS) destiné à recevoir de l’énergie et à l’emmagasiner sous une forme qui peut approvisionner en énergie électrique, selon la nécessité, des charges ou le système d’alimentation électrique (EPS) local ou d’un secteur. Les ESS électrochimiques, chimiques, mécaniques et thermiques sont couverts par la…

This document specifies the dimensions of tapered shaft ends and hubs of fuel injection pumps and high-pressure supply pumps for diesel (compression-ignition) engines. The specified shaft ends and hubs can be used with or without keys. NOTE            The specified shaft ends and hubs can also be used for other applications where no specific standards exist.

This document describes test equipment and procedures for measuring the light stability of photographic prints when subjected to a filtered xenon-arc light source at specified levels of illuminance (irradiance), temperature and relative humidity. It is applicable to both colour and monochrome reflection prints, transparent films, or translucent films. It is also applicable to photographic prints…

This standard applies to round sections of reinforced concrete or unreinforced concrete pipes intended for conveying sanitary wastewater or storm water or both by gravity flow. These pipes may also be used as culverts. This standard applies to reinforced concrete pipes and monolithic lateral connections of diameters from 200 mm to 3 600 mm, to unreinforced concrete pipes and monolithic lateral…

Scope 1.1 General 1.1.1 This Standard covers solid waste containment interceptors intended for commercial and residential applications and specifies requirements for materials, physical characteristics, performance testing, and markings. 1.1.2 Solid waste containment interceptors covered by this standard include trap interceptors and non-trap interceptors of various configurations (see…

This document establishes a framework for the characterization of physical and chemical properties of tyre and road wear particles (TRWP) using published analytical standards. It is applicable to laboratory-generated TRWP and TRWP collected in the environment. NOTE            This framework focuses primarily on published International Standards, but also includes standards published by other…

This document provides a consolidated set of rules and associated guidelines as found and defined in the existing parts of the ISO/IEC 15944 series. NOTE      Not all parts of the ISO/IEC 15944 series have rules, that is ISO/IEC 15944-6, ISO/IEC 15944-14 and ISO/IEC 15944-20.