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This document specifies safety, constructional and performance requirements and testing of automatic, semi-automatic shut-off valves and general purpose valves for gas burners, gas appliances and appliances of similar use, hereinafter referred to as valves. This document applies to normally closed valves and general purpose valves mounted upstream to gas burners and gas appliances with declared…

This document applies to voltage class B electric propulsion systems and connected auxiliary electric systems of electrically propelled road vehicles. It applies to electric circuits and components in these systems. This document focuses on the characteristics at the DC voltage class B terminals of these components as specified in ISO 21498-1. It describes testing methods, test conditions and…

This document covers steel castings for pressure containing parts. It includes materials which are used for the manufacture of components subject to pressure vessel codes and components not subject to codes. This document relates to castings manufactured from unalloyed and alloyed steel grades (characterized by their chemical composition given in Table 1, and mechanical properties in Tables 2, 3…

Le présent document spécifie les exigences relatives au positionnement et au dimensionnement des moyens de protection par rapport à l’approche du corps humain ou de ses parties vers le ou les danger(s) au sein du périmètre d’action visé, comme suit: —     la position et la dimension de la ou des zones de détection de l’ESPE et des tapis et planchers sensibles à la pression; —     la position des…

This document specifies safety, constructional and performance requirements and testing of automatic, semi-automatic shut-off valves, and general purpose valves for gas burners, gas appliances and appliances of similar use excluding use in fuel gas infrastructures (transportation and distribution systems). This document applies to controls for use at maximum operating pressures above 500 kPa up…

This document specifies reference wavelengths to be used for the characterization of optical materials, optical systems and instruments, and ophthalmic lenses. It defines the associated principal refractive indices and principal dispersions, as well as the Abbe numbers with regard to these reference wavelengths and principal dispersions.

Le présent document définit des longueurs d'onde de référence à utiliser pour la caractérisation des matériaux optiques, des systèmes et des instruments d'optique et des verres ophtalmiques. Il définit les indices de réfraction principaux et les dispersions principales associées, ainsi que les nombres d'Abbe par rapport à ces longueurs d'onde de référence et aux dispersions…

This document specifies generic measuring and calculation methods to evaluate the energy efficiency of individual maritime components installed on board ships, vessels for inland navigation or offshore structures. This document only covers energy consuming components for which a “unit output” can be clearly defined and which require energy to function. This document only covers the major energy…

This document specifies methods by which the spectral characteristics such as wavelength, bandwidth, spectral distribution and wavelength stability of a laser beam can be measured. This document is applicable to both continuous wave (cw) and pulsed laser beams. The dependence of the spectral characteristics of a laser on its operating conditions may also be important.

Le présent document spécifie des méthodes qui permettent de mesurer les caractéristiques spectrales, telles que la longueur d’onde, la largeur spectrale, la distribution spectrale et la stabilité en longueur d’onde d’un laser. Le présent document s’applique aux faisceaux laser continu et impulsionnel. La dépendance des caractéristiques spectrales d’un laser vis-à-vis de ses conditions de…