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This document describes procedures for the determination of non-rare earth impurities in individual rare earth metals and their oxides through the use of inductively coupled plasma atomic emission spectroscopy (ICP-AES). Magnesium (Mg), aluminum (Al), silicon (Si), calcium (Ca) and iron (Fe) are included as non-rare earth impurity elements, and the measurement ranges for each impurity element are specified. The applicable measurement range (mass fraction %) of magnesium, aluminum, silicon and calcium is from 0,001 to 0,2, and that of iron is from 0,001 to 0,5. The verified measurement ranges in the interlaboratory tests are described later in this document.

This International Standard describes the general principles of acoustic emission testing (AT) of materials, components, and structures made of fibre-reinforced polymers (FRP) with the aim of — materials characterization, — proof testing and manufacturing quality control, — retesting and in-service testing, and — health monitoring. This International Standard has been designed to describe specific methodology to assess the integrity of fibre-reinforced polymers (FRP), components, or structures or to identify critical zones of high damage accumulation or damage growth under load (e.g. suitable instrumentation, typical sensor arrangements, and location procedures). It also describes available, generally applicable evaluation criteria for AT of FRP and outlines procedures for establishing such evaluation criteria in case they are lacking. This International Standard also presents formats for the presentation of acoustic emission test data that allows the application of qualitative evaluation criteria, both online during testing and by post-test analysis, and that simplify comparison of acoustic emission test results obtained from different test sites and organizations. NOTE The structural significance of the acoustic emission cannot in all cases definitely be assessed based on AT evaluation criteria only but can require further testing and assessment (e.g. with other non-destructive test methods or fracture mechanics calculations).

This document specifies minimum requirements for the design and performance of stretchers and other patient handling equipment used in road ambulances for the handling and carrying of patients. It aims to ensure patient safety and minimize the physical effort required by staff operating the equipment.

ISO 5364:2016 specifies requirements for oropharyngeal airways of plastics materials and/or rubber, including those with a reinforcement insert made of plastics materials and/or metal. ISO 5364:2016 is not applicable to metal oropharyngeal airways, nor to requirements concerning flammability of oropharyngeal airways. Flammability of oropharyngeal airways, for example, if flammable anaesthetics, electrosurgical units, or lasers are used, is a well-recognized hazard. It is addressed by appropriate clinical management, which is outside the scope of this International Standard. ISO 5364:2016 is not applicable to supralaryngeal airways without an internal, integral sealing mechanism.

This part of ISO 23247 series specifies how the digital thread enables the creation, connectivity, management and maintenance of manufacturing digital twins across the product life cycle by defining principles, showing methodologies, and providing use case examples.

This document specifies particular requirements and performance criteria for the design and construction of cast-in situ concrete chimneys as well as prefabricated concrete chimneys. It identifies requirements to ensure the mechanical resistance and stability of concrete chimneys in accordance with the general requirements given in EN 13084-1:2025. As for chimneys attached to buildings the criteria given in Clause 1 of EN 13084-1:2025 apply. Unless otherwise stated in the following clauses the basic standard for the design of concrete structures, EN 1992-1-1:2023 applies.

This part of ISO 23247 specifies digital twin composition in manufacturing by defining principles, showing methodologies, and providing use case examples of configuration, communication, combination and collaboration between digital twins during manufacturing.

This document specifies the requirements and test methods for the construction, safety, marking and rational use of energy. This document is applicable to types B11AS, B11BS, B11CS, C11, C31 and C91 appliances (see 4.2) and those that: — are closed-fronted; — incorporate a natural draught burner; — are connected directly to an open flue or to a device to evacuate the products of combustion (open-flued appliances, balanced-flued appliances); — are wall mounted, free-standing or built-in; — have a nominal heat input not exceeding 20 kW (based on the net calorific value). This document is not applicable to: — open fronted appliances as specified in EN 13278:2013; — decorative fuel effect appliances as specified in EN 509:1999/A1:2003; — catalytic combustion appliances; — appliances in which the supply of combustion air and/or evacuation of products of combustion is achieved by mechanical means as specified in EN 1266:2002; — ducted-air appliances; — appliances installed by means of a closure plate (see 3.3.3.3). Matters related to quality assurance systems, tests during production and to certificates of conformity of auxiliary devices are not dealt with by this standard.

This document specifies the requirements and test methods for the construction, safety, and marking of decorative fuel effect gas appliances not exceeding a nominal heat input of 20 kW (based on the net calorific value), thereafter referred to as appliances. This document is applicable to appliances that are designed to simulate a solid fuel fire and incorporate a natural draught burner with or without an ignition burner, that uses one or more combustible gases of the three gas families at the pressures stated in EN 437:2021. The appliances are for decorative purposes only and are not heating appliances. This document is applicable to type BAS, as described in 4.2, decorative fuel effect gas appliances that are designed to be installed within a non-combustible builder's opening or a non-combustible fireplace recess. This document specifies special national conditions in Annex C for appliances of category I2E+, marketed in Belgium. This document specifies special A-deviations in Annex D for appliances in Switzerland which require additional requirements for subclauses 6.6 and 6.7. This document includes additional requirements for Type BBS appliances which are specified in Annex F. In addition, this document is applicable to decorative fuel-effect gas appliances that are designed to be installed under a non-combustible canopy which is independent or integral with a flue box, for which additional requirements are specified in Annex A. The use of toxic gases is not covered. This document is not applicable to: - catalytic combustion appliances; - appliances in which the supply of combustion air and/or the evacuation of products of combustion is achieved by mechanical means. NOTE Requirements concerning the rational use of energy have not been included in this document because the appliances are for decorative purposes.

This document shall cover, regardless if manufactured in factories or in temporary plants on site under the same conditions, prefabricated reinforced components of autoclaved aerated concrete with a dry density between 250 and 1000 kg/m3 to be used in building construction as: — solid, hollow core and multilayer wall elements intended to be used as structural elements; — solid, hollow core and multilayer wall elements intended to be used as non-structural elements and if relevant for applications in contact with soil and ground water; — retaining walls intended to be used as structural elements and if relevant for applications in contact with soil and ground water; — solid, hollow core and multilayer roof elements intended to be used as structural elements; — solid, hollow core and multilayer floor elements intended to be used as structural elements; — solid, hollow core beams intended to be used as structural elements; — solid piers intended to be used as structural elements and if relevant for applications in contact with soil and ground water; — cladding elements intended to be used as non-loadbearing elements; — rectangular cross-section box culverts intended not to be used as structural elements and if relevant for applications in contact with soil and ground water; — components for noise barriers intended not to be used as structural elements and if relevant for applications in contact with soil and ground water. This document does not cover: — retaining walls intended to retain tanks or reservoirs of liquids; — precast diaphragm walls (concrete sheet piling); — ribbed floor elements; — lintels.

This document covers, regardless of if manufactured in factories or in temporary plants on site under the same conditions, precast concrete elements made of lightweight concrete with an open structure, and with a dry density between 400 and 2000 kg/m3 intended for: — solid, hollow core and multilayer load-bearing wall elements; — solid, hollow core and multilayer non-load-bearing wall elements; — retaining wall elements, excluding retaining walls intended to retain tanks or reservoirs of liquids and diaphragm walls (concrete sheet piling); — solid, hollow core and multilayer roof elements, excluding ribbed floor elements and floor slabs elements; — solid, hollow core and multilayer floor elements excluding floor elements with the intended use to carry traffic loads; — solid and hollow core beams; — solid piers; — cladding elements; — box culverts; — components for noise barriers. NOTE In addition to their loadbearing and encasing function, elements can also be used to provide fire resistance, sound insulation and thermal insulation. Recycled lightweight concrete with an open structure (other than closed-loop recycling during production) is covered by this document. Reused precast concrete elements made of lightweight concrete with an open structure are covered by this document.

This document specifies a method for the determination of nominal compressive strength of advanced monolithic technical ceramic materials at room temperature.

This document specifies methods for the chemical analysis of impurities present in aluminium oxide powders used as a raw material for fine ceramics. Aluminium oxide powders are decomposed by acid pressure decomposition, acid decomposition or alkali fusion. The calcium, chromium, copper, iron, magnesium, manganese, potassium, silicon, sodium, titanium, zinc and zirconium contents in the test solution are determined by an inductively coupled plasma-optical emission spectrometer (ICP-OES).

ISO 8894-2:2007 describes a hot-wire (parallel) method for the determination of the thermal conductivity of refractory products and materials.

This document specifies a method for determination of the cold compressive strength of dense shaped refractory products. Shaped refractories are those which have fixed geometry and dimensions when delivered to the user. This document is accordingly applicable to standard shape refractory bricks, but also special shapes refractory products and pre-cast products.

This document specifies a method for the determination of the modulus of rupture of dense and insulating shaped refractory products at ambient temperature, under conditions of a constant rate of increase of stress. Shaped refractories are those which have fixed geometry and dimensions when delivered to the user. This document is accordingly applicable to standard shape refractory bricks, but also special shapes refractory products and pre-cast products. This document is also applicable to unshaped refractories (see ISO 1927-6) after preparation of test specimens according to ISO 1927-5.

This document provides a common language covering NTTM in food authentication. It provides: - definitions of terms involved in the development and validation of NTTM; - a general structure and guidelines for development of NTTM; - general considerations for the validation of NTTM. NOTE “Food and feed” is implied whenever the term “food” is used in this document.

This European Standard establishes a semantic data model of the core elements of an electronic invoice. The semantic model includes only the essential information elements that an electronic invoice needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and for domestic trade. The semantic model may be used by organizations in the private and the public sector for public procurement invoicing. It may also be used for invoicing between private sector enterprises. It has not been specifically designed for invoicing consumers. This European Standard complies at least with the following criteria: - it is technologically neutral; - it is compatible with relevant international standards on electronic invoicing; - the application of this standard should comply with the requirements for the protection of personal data of Directive 95/46/EC, having due regard to the principles of privacy and data protection by-design, data minimization, purpose limitation, necessity and proportionality; - it is consistent with the relevant provisions of Directive 2006/112/EC [2]; - it allows for the establishment of practical, user-friendly, flexible and cost-efficient electronic invoicing systems; - it takes into account the special needs of small and medium-sized enterprises as well as of sub-central contracting authorities and contracting entities; - it is suitable for use in commercial transactions between enterprises.

ISO/IEC 17067 describes the fundamentals of product certification and provides guidelines for understanding, developing, operating or maintaining certification schemes for products, processes and services. ISO/IEC 17067 is intended for use by all with an interest in product certification, and especially by certification scheme owners.

1.1 This International Standard contains principles and requirements for the competence, consistency and impartiality of the certification of products (including services; see clause 3.3 of ISO/IEC 17000) and processes and for the bodies providing those activities. Certification bodies operating to this International Standard need not offer all types of product, service or process certification. 1.2 Certification of products, services and processes is a third party conformity assessment activity (see clause 5.5 of ISO/IEC 17000:2004). Bodies performing this activity are therefore third party conformity assessment bodies, (named in this standard "certification body/bodies"). Note 1 A certification body can be non-governmental or governmental (with or without regulatory authority). Note 2 This International Standard can be used as a criteria document for accreditation or peer assessment or other assessment processes.