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This document gives guidelines for identifying: a) The typical architectures of touch-down bearing systems to show which components are likely to comprise such systems and which functions these components provide; NOTE       Touch-down bearings are also known as “backup bearings”, “auxiliary bearings”, “catcher bearings” or “landing bearings”. Within this document, the term “touch-down bearings”…

This document specifies how to determine the impact resistance of laminate floor covering elements. The test described measures the ability of the surface layer to withstand impact from both small and large objects dropped on the floor covering. The testing is destructive by means of the impact on the surface layer from one small and one larger steel ball simulating different scenarios. The…

This document specifies requirements for railway driving simulators for drivers' training. It defines the minimum functions and performances for a driver training simulator. This document is applicable to all guided transport systems, including for mainlines, metros, tramways and light rails, as part of public/private transport systems. These vehicles are intended for the operation of…

This document specifies the thermophysical properties of several commonly used refrigerants and refrigerant blends. This document is applicable to refrigerants R12, R22, R32, R123, R125, R134a, R143a, R152a, R290, R600a, R717 (ammonia), R744 (carbon dioxide), R1233zd(E), R1336mzz(Z), R1234yf and R1234ze(E) and to the refrigerant blends R404A, R407C, R410A, and R507A. The following properties are…

This document defines procedures for determining the standard thermal outputs and other characteristics of radiators and convectors installed in a permanent manner in construction works, fed with water or steam at temperatures below 120 °C, supplied by a remote energy source. This document specifies the laboratory arrangements and testing methods to be adopted, the admissible tolerances, the…

This document specifies technical characteristics and strength requirements for fork arm extensions and telescopic fork arms for industrial trucks. It applies to fork arm extensions and telescopic fork arms, as defined in ISO 5053‑2, designed for use on industrial trucks and stacking lift trucks, as defined in ISO 5053‑1, having fork arm carriers and, in the case of fork arm extensions, fork arms…

This document provides an appropriate reference spectral irradiance distribution to be used in determining relative performance of solar thermal, photovoltaic, and other systems, components and materials where the direct or hemispherical irradiance component is desired. This document provides one reference hemispherical irradiance spectrum, one reference direct normal irradiance spectrum and 171…

IEC 61753-089-02:2022 contains the minimum initial test and measurement requirements and severities which a fibre-optic pigtailed wide wavelength division multiplexing (WWDM) device for monitoring passive optical networks (PON) using an optical time-domain reflectometer (OTDR) satisfies in order to be categorised as meeting the requirements of category C (indoor controlled environment), as…

IEC 61196-1-124:2022 defines the test method to determine the coupling loss of radiating coaxial communication cables that are intended for use in wireless communication systems such as tunnels, railways, highways, subways, elevators and other confined areas in which conventional antenna transmission is not satisfactory or even impossible.

IEC 61855:2022 applies to electrical appliances for household and similar use for drying and styling hair (including their accessories). This document defines the main performance characteristics that are of interest to the user and specifies methods of measuring these characteristics. Appliances to which this document applies include: – Hair dryers; – Hair curlers; – Hair straighteners.…