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This document specifies the measurement method for the determination of total activity concentration of uranium isotopes in non-saline waters by extraction and liquid scintillation counting. This method covers the measurement of soluble uranium isotopes in water in activity concentrations between approximately 2·10-3 Bq/kg and 10 Bq/kg when analysing a 1 l test sample volume with a 60 000 s counting time with a typical alpha LSC instrument. The ratio 234U/238U can also be determined. This method has not been tested for the measurement of other uranium isotopes.

 

This document specifies the requirements for solid wall pipes with smooth internal and external surfaces, extruded from the same formulation throughout the wall, fittings and the piping system of unplasticized poly(vinyl chloride) (PVC-U) intended for soil and waste discharge applications (low and high temperature) - buildings, above ground inside the building, or outside buildings fixed onto the wall; which is reflected in the marking by “B” - for both inside buildings and buried in ground within the building structure, which is reflected in the marking by “BD”. This intended use is only applicable for components with nominal outside diameters equal to or greater than 75 mm. NOTE 1 Multilayer pipes with different formulations throughout the wall and foamed core pipes are covered by EN 1453-1 [1]. PVC-U pipes, fittings and the system complying with this document are suitable for the following purposes: - ventilating part of the pipework in association with discharge applications; - rainwater pipework within the building structure. This document covers a range of nominal sizes, a range of pipes and fittings series and gives recommendations concerning colours. Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this document, provided they conform to the requirements for joint dimensions given in Clause 7 and to the requirements of Table 26. NOTE 2 EN 476 [2] specifies the general requirements for components used in discharge pipes, drains and sewers for gravity systems. Pipes and fittings conforming to EN 1329-1 fully meet the EN 476 requirements.

 

The following is in scope of this document: - business specification for long term archiving and retrieval of CAD 3D explicit geometry (see Clause 5); - essential information of CAD 3D explicit geometry (solids, curves, surfaces, and points) to be preserved (see Clause 6); - data structures detailing the main fundamentals and concepts of CAD 3D explicit geometry (see Clause 7); - verification rules to check CAD 3D explicit geometry for consistency and data quality (see Clause 8); - validation rules to be stored with the CAD 3D explicit geometry in the archive to check essential characteristics after retrieval (see Clause 9). NOTE 1 This document includes the geometrical external shape resulting from CAD 3D domain elements (e.g. 3D Structural components, 3D Tubing, 3D electrical harness, 3D composite, etc.). The following is outside the scope of this document: - the formal definition of validation and verification rules to check 3D explicit geometry for consistency and data quality using a machine-readable syntax; - implicit or parametric geometry; - Geometric Dimensioning and Tolerancing (GD&T), Product and Manufacturing Information (PMI); N0TE 2 For long term archiving of the GD&T and PMI see EN 9300 120, EN 9300 121 and EN 9300 125. - assembly structures and PDM product structures; NOTE 3 For long term archiving of assembly structure see EN 9300 115 and for product structure see EN 9300 2xx series. - model styling and organization of explicit geometry.

 

This Part of this European Standard specifies the requirements for inspection and testing of industrial piping as defined in EN 13480-1:2017 to be performed on individual spools or piping systems, including supports, designed in accordance with EN 13480-3:2017 and EN 13480-6:2017 (if applicable), and fabricated and installed in accordance with EN 13480-4:2017.

 

This document specifies test methods for the determination of the technical characteristics of underlays under laminate floor coverings. It includes minimum performance requirements for the underlay-flooring system to give satisfactory service and to encourage the consumer to make an informed choice. It also specifies requirements for marking and packaging. Underlays pre-attached to the laminate flooring coverings are not covered by this document. Underlays for laminate floor coverings intended for use in electrostatically sensitive areas such as computer rooms, etc., are not covered by this document.

 

This document provides guidelines, methodology and techniques for deriving securely information from real activities denoted to as provenance metadata about data assets from multiple sources, intermediaries or users.

 

This document defines key establishment mechanisms based on weak secrets, i.e. secrets that can be readily memorized by a human, and hence, secrets that will be chosen from a relatively small set of possibilities. It specifies cryptographic techniques specifically designed to establish one or more secret keys based on a weak secret derived from a memorized password, while preventing offline brute-force attacks associated with the weak secret. This document is not applicable to the following aspects of key management:

 

This document specifies the requirements for development and use of a reference architecture (RA), for a field of application, domain of activity or area of concern. An RA can apply to several kinds of entities, such as, enterprises, missions, organizations, systems, subsystems, components, processes, businesses, data, applications, information technologies, products, services, software items, hardware items, product lines, families of systems, systems of systems, collections of systems, and collections of applications. This document specifies the requirements to be satisfied by a reference architecture description (RAD). An RAD captures common or generalized architectural information for a category of entities or for a field of application, a domain of activity or an area of concern. This document is intended for: The applicability of this document includes, but is not limited to, fields such as the following: artificial intelligence (AI), machine learning (ML), internet of things (IoT), cloud computing, cybersecurity, big data, smart cities, smart manufacturing, digital twins, telecommunications, aerospace, defence, banking, finance, insurance, energy, automotive, logistics, hospitality, healthcare, supply chains, transportation, manufacturing and production, agriculture and infrastructure. This document offers guidance for architects developing or using an RA and its RAD that draws from various general purpose, architecture-specific standards such as ISO/IEC/IEEE 42024, 42010, 42020 and 42030 and related standards, such as ISO 15704, 19439 and 19440, ISO/IEC/IEEE 15288, 12207, 24748-1 and 24641 for enterprise, systems and software modelling, respectively.

 

 

This document specifies a method for measurement of the viscosity of a ceramic slurry using a rotational viscometer. The method only involves rotations with a monotonic angle variation. Measurements using an oscillating rotation are excluded from the scope of this document. Ceramic slurry is used in ceramic processes such as dip coating, spray coating, screen printing, slip casting, tape casting, spray drying and polishing. Dispersion of fillers in molten thermoplastic polymers are excluded from the scope of this document.

 

This document describes a test method for the determination of the resistance of vitreous and porcelain enamelled articles to attack by alkaline liquids at temperatures between 25 °C and 95 °C. The apparatus used is a cylindrical vessel with a volume-surface ratio 20:1 cm in which only one enamelled specimen is tested. NOTE 1 The test method was initially set up for determination of the resistance of vitreous and porcelain enamels to a hot sodium hydroxide solution. Within the scope of this part of ISO 28706, the resistance of other alkaline liquids can be tested. NOTE 2 This part of ISO 28706, which uses a cylindrical vessel, is generally used for tests carried out on vitreous and porcelain enamel coatings for the chemical industry.

 

This document specifies a test method for the determination of the resistance of flat surfaces of vitreous and porcelain enamels to boiling acids, boiling neutral liquids, alkaline liquids and/or their vapours. This method allows the determination of the resistance of vitreous and porcelain enamels to the liquid and vapour phases of the corrosive medium simultaneously.

 

This document specifies the Avatar Representation Format (ARF) with the goal of offering an interoperable exchange format for the storage, carriage and animation of 3D avatars. It defines the structure, components, and metadata necessary to represent and animate avatar models accurately and consistently across various systems and platforms, ensuring interoperability and efficient use in immersive media applications. Moreover, the document includes the specifications for the ARF container formats, animation stream formats, and procedures for integrating ARF into existing MPEG Scene Descriptions. It further addresses data representation methodologies, including tensor data formats for handling complex avatar-related data, as well as security and authentication mechanisms to verify avatar authenticity and prevent impersonation.

 

This document describes the considerations for inclusion of toxicokinetic evaluation in the biological evaluation of medical devices and provides principles on designing and performing toxicokinetic evaluation relevant to medical devices.

 

This calculation module applies to instantaneous domestic hot water heat recovery using a counter-flow heat exchanger between the drain water and the incoming domestic cold water. This module calculates the recovered heat, to be taken into account in the overall calculation procedure of the energy performance of the building. The scope of this document is to standardize the: - required inputs; - calculation methods; - required outputs; of the instantaneous heat recovery from domestic hot water drains. This document provides a calculation method for one calculation interval. This calculation is intended to be connected to the whole building calculation model and takes into account the external conditions and system controls that may influence the instantaneous heat recovery from domestic hot water drains. This document does not apply to storage heat recovery or the use of drain water as a source for heat pumps. This document does not apply to sizing or inspection of domestic hot water heat recovery devices. Table 1 shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1. NOTE 1 The same Table is found in CEN ISO/TR 52000-2, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Table A.1 and Table B.1.

 

This document specifies the requirements for steel products used for industrial piping and supports. For some metallic materials other than steel, such as spheroidal graphite cast iron, aluminium, nickel, copper, titanium, requirements are or will be formulated in separate parts of this document. For metallic materials which are not covered by a harmonized material standard and are not likely to be in near future, specific rules are given in this part or the above cited parts of this document.

 

This document specifies the requirements for steel products used for unfired pressure vessels. For some metallic materials other than steel, such as spheroidal graphite cast iron, aluminium, nickel, copper, titanium, requirements are or will be formulated in separate parts of this document. For metallic materials which are not covered by a harmonized material standard and are not likely to be in near future, specific rules are given in this part or the above cited parts of this document.

 

This document specifies a procedure for the determination of the dimensional changes and distortion out of plane likely to take place when textile floor coverings and tiles are subjected to varied water and heat conditions. The method is applicable to all textile floor coverings and textile floor coverings in tile form.

 

This document specifies a chamber method with three options of test chambers for the determination of the formaldehyde emission from wood-based panels in terms of the steady-state concentration in a climate chamber under defined conditions, which relate to typical conditions in real-life. This chamber method can also be applied to the estimation of formaldehyde concentrations under various conditions in practice, by the use of mathematical models. This document can also be used for the testing of formaldehyde emissions of products other than wood-based panels.

 

This document specifies references to methods for sampling of soil improvers and growing media and sample preparation of soil improvers and growing media for subsequent determination of quality and quantity. This document is applicable to the fertilizing product blends where a blend is a mix of two or more fertilising products belonging to the categories of fertilizers, liming material, soil improvers, growing media, inhibitors and plant biostimulants, and where soil improvers and/or growing media are the components with the highest percentage in the blend by mass or volume, or in the case of products in liquid form by dry mass. If the soil improvers and/or growing media are not the components with the highest percentage in the blend, the European Standard relevant to the component with the highest percentage in the blend applies. In case a blend is composed of fertilising products mixed in equal quantities, the user of the standard decides which standard to apply. NOTE A soil improver or a growing medium consists of a single bulky (volume-building) component or a mix of bulky (volume-building) components (for example peat, wood fibres, coconut coir, compost, expanded perlite).