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1 Scope 1.1 Object This Standard provides a method for measuring fireplace, steady-state, and radiant efficiency. 1.2 Appliances included in scope This Standard applies to vented gas fireplaces meeting the requirements of ANSI Z21.50 • CSA 2.22 and to vented gas fireplace heaters meeting the requirements of CSA/ANSI Z21.88 • CSA 2.33 that use natural gas or propane. 1.3 Appliances excluded…

This document specifies minimum requirements for instruments and systems that fall into the class of corneal topographers (CTs). It also specifies tests and procedures to verify that a system or instrument complies with this document and thus qualifies as a CT according to this document. It also specifies tests and procedures that allow the verification of capabilities of systems that are beyond…

1 Scope 1.1 General This Standard specifies requirements for open profile polypropylene (PP) storm sewer pipe and fittings for leak-proof applications. Profile wall pipe includes only open profile with smooth interior and sizes based on controlled inside diameter. Open profile pipe is of an annular construction. Notes: 1) Pipe and fittings manufactured in accordance with this Standard…

IEC 60695-11-11:2021 describes a test method used to determine the characteristic heat flux for ignition (CHFI) from a non-contacting flame source for materials used in electrotechnical products, sub-assemblies or their parts. It provides a relationship between ignition time and incident heat flux. A test specimen cut from an end-product or sub-assembly can be tested by this test method. This…

IEC 62271-200:2021(E) is applicable to prefabricated metal‑enclosed switchgear and controlgear assemblies designed for: – alternating current; – rated voltages above 1 kV and up to and including 52 kV; – service frequencies up to and including 60 Hz; – indoor and outdoor installation. The assembly can include air-insulated and/or fluid-filled compartments. This third edition cancels and replaces…

IEC PAS 63313:2021 The safety advice in this document applies to UV-C sources and UV-C products which emit in the wavelength range of 180 nm to 280 nm. Not within the scope are: - devices having their own product safety standard, such as IEC 60335-2-109 applicable to UV-C water disinfection equipment and IEC 60335-2-65 applicable to UV-C air disinfection equipment - application environments of…

IEC 61076-2-010:2021 specifies circular connectors with a push-pull locking mechanism of a size derived from, and thus being compatible with M12 screw-locking connectors (free connectors with screw-locking according to IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 or IEC 61076-2-113 are compatible with push‑pull fixed interfaces according to this document) and with mating interfaces according…

IEC 62271-200:2021 is applicable to prefabricated metal‑enclosed switchgear and controlgear assemblies designed for: – alternating current; – rated voltages above 1 kV and up to and including 52 kV; – service frequencies up to and including 60 Hz; – indoor and outdoor installation. The assembly can include air-insulated and/or fluid-filled compartments. This third edition cancels and…

IEC 60695-11-11:2021 describes a test method used to determine the characteristic heat flux for ignition (CHFI) from a non-contacting flame source for materials used in electrotechnical products, sub-assemblies or their parts. It provides a relationship between ignition time and incident heat flux. A test specimen cut from an end-product or sub-assembly can be tested by this test method. This…

Field devices are a key component in intelligent transport systems (ITS). Field devices include traffic signals, message signs, weather stations, traffic sensors, roadside equipment for connected ITS (C-ITS) environments, etc. Field devices often need to exchange information with other external entities (managers). Field devices can be quite complex necessitating the standardization of many data…