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This document specifies evaluation methods for surface tension of ultrafine bubble (UFB) dispersion in water. Three test methods, Wilhelmy, du Noüy and the pendant drop method, are adopted because of their advantages to detect small change in surface tension by UFB dispersion in water and the high accessibility to commercially available instruments. This document can be used to measure the…

Le présent document fournit les exigences générales associées aux caractéristiques spécifiques des filtres à air à très haute efficacité (HEPA) utilisés dans les installations nucléaires. Le présent document fournit au fabricant des exigences générales pour la performance, la conception, la construction, les essais d’acceptation, et l’assurance qualité des filtres HEPA utilisés dans les…

This document provides high-level guidance to data users, whether organizations or individuals, to assist in realizing the benefits from data usage while managing risks.

This document specifies dimensions of ball-bearing turntable when mounted on a vehicle which is part of vehicle combinations specified in of ISO 18868:2013, Clause 4, to ensure their interchangeability. This document also applies to the following: —     drawbar trailers using a ball-bearing turntable to steer the front axle; —     ball-bearing turntables assembled with the fifth-wheel of the road…

This document provides guidance on how to use and implement ISO 37120, ISO 37122 and ISO 37123. ISO 37120, ISO 37122 and ISO 37123 specify definitions and methodologies for a set of indicators to steer and measure the performance of city services as well as quality of life, smart city development and resilience planning. ISO 37120, ISO 37122 and ISO 37123 supports cities in achieving their goals…

This document defines the requirements for the symbology known as Aztec Code. It specifies the Aztec Code symbology characteristics, including: —     data character encodation; —     rules for error control encoding; —     the graphical symbol structure; —     symbol dimensions and print quality requirements; —     a reference decoding algorithm; —     user-selectable application parameters.

This document specifies a point counting method for statistically estimating the volume fraction of a constituent through the microstructure of a steel by means of a point grid. It applies to constituents which are clearly identifiable. By default, counting is performed manually, but can be computer assisted or substituted by validated computer algorithms. NOTE            In this document, the…

This document specifies two methods for determining the adhesion strength of vulcanized rubber to wire cord which is embedded in the rubber. The two methods do not necessarily give the same results. They are applicable primarily to test pieces prepared in the laboratory under standard conditions and used for the development and control of materials and processes utilized in the manufacture of…

This document specifies a routine method after fusion under inert gas for the determination of oxygen in steel. The method is applicable to contents of oxygen between 0,001 % (mass fraction) and 0,02 % (mass fraction).

This document specifies the performance requirements for push-pull single-pole trip-free circuit-breakers having an inverse time/current characteristic, of normal ratings up to and including 35 A, for use in nominal 28 V d.c. and/or 115 V single-phase 400 Hz a.c. line to neutral circuits.