Toimialayhteisöt

 

This document specifies the requirements and their test methods applicable to all elastomeric auxiliaries used for orthodontics both inside and outside the mouth, in conjunction with fixed and removable appliances.

 

 

This part of EN 843 specifies methods for determining the elastic moduli, specifically Young’s modulus, shear modulus and Poisson’s ratio, of advanced monolithic technical ceramics at room temperature. This European Standard prescribes four alternative methods for determining some or all of these three parameters: A The determination of Young’s modulus by static flexure of a thin beam in three- or four-point flexure. B The determination of Young’s modulus by forced longitudinal resonance, or Young’s modulus, shear modulus and Poisson’s ratio by forced flexural and torsional resonance, of a thin beam. C The determination of Young’s modulus, shear modulus and Poisson’s ratio from the time-of-flight of an ultrasonic pulse. D The determination of Young’s modulus from the fundamental natural frequency of a struck bar (impulse excitation method). All the test methods assume the use of homogeneous test pieces of linear elastic materials. NOTE 1 Not all ceramic materials are equally and linearly elastic in tension and compression, such as some porous materials and some piezoelectric materials. With the exception of Method C, the test assumes that the test piece has isotropic elastic properties. Method C may be used to determine the degree of anisotropy by testing in different orientations. NOTE 2 An ultrasonic method for dealing with anisotropic materials (ceramic matrix composites) can be found in ENV 14186 (see Bibliography). An alternative to Method D for isotropic materials using disc test pieces is given in Annex A. NOTE 3 At high porosity levels all of the methods except Method C can become inappropriate. The methods are only suitable for a maximum grain size (see EN 623-3), excluding deliberately added whiskers, of less than 10 % of the minimum dimension of the test piece. NOTE 4 The different methods given in this European Standard can produce slightly different results on the same material owing to differences between quasi-isothermal quasi-static an

 

This part of EN 820 describes methods for determining the elastic moduli, specifically Young's modulus, shear modulus and Poisson's ratio, of advanced monolithic technical ceramics at temperatures above room temperature. The standard prescribes three alternative methods for determining some or all of these three parameters: A the determination of Young's modulus by static flexure of a thin beam in three- or four-point bending. B the determination of Young's modulus by forced longitudinal resonance, or Young's modulus, shear modulus and Poisson's ratio by forced flexural and torsional resonance, of a thin beam. C the determination of Young's modulus from the fundamental natural frequency of a struck bar (impulse excitation method). This part of EN 820 extends the above-defined room-temperature methods described in EN 843-2 to elevated temperatures. All the test methods assume the use of homogeneous test pieces of linear elastic materials. The test assumes that the test piece has isotropic elastic properties. At high porosity levels all of the methods can become inappropriate. The maximum grain size (see EN 623-3), excluding deliberately added whiskers, should be less than 10 % of the minimum dimension of the test piece. NOTE 1 Method C in EN 843-2 based on ultrasonic time of flight measurement has not been incorporated into this part of EN 820. Although the method is feasible to apply, it is specialised, and outside the capabilities of most laboratories. There are also severe restrictions on test piece geometries and methods of achieving pulse transmission. For these reasons this method has not been included in EN 820-5. NOTE 2 The upper temperature limit for this test depends on the properties of the test pieces, and can be limited by softening within the timescale of the test. In addition, for method A there can be limits defined by the choice of test jig construction materials.

 

This document specifies the geometries and proposed finishing procedures of the inner surface of hollow test piece of metallic materials, filled with a high-pressure gaseous medium. The document specifies a tensile testing procedure to evaluate the effect of high-pressure gaseous medium compared to a high-pressure inert gas or air. The document can be used for the screening of metallic materials by evaluating mechanical property changes due to the effects of various test gases, including hydrogen. NOTE          Temperature range and pressure range depend on the materials to be tested and test gas to be used.

 

This document specifies the dimensions of, and additional requirements for, fork carriers (as defined in ISO 5053-3) and hook-on type fork arms (as described in ISO 2331), to permit the interchangeability of fork arms (as defined in ISO 5053-2) or other attachments, relative to the truck-rated capacity and fork arm type, on fork-lift trucks up to and including a rated capacity of 10 999 kg.

 

ISO 25237:2017 contains principles and requirements for privacy protection using pseudonymization services for the protection of personal health information. This document is applicable to organizations who wish to undertake pseudonymization processes for themselves or to organizations who make a claim of trustworthiness for operations engaged in pseudonymization services. ISO 25237:2017

- defines one basic concept for pseudonymization (see Clause 5),

- defines one basic methodology for pseudonymization services including organizational, as well as technical aspects (see Clause 6),

- specifies a policy framework and minimal requirements for controlled re-identification (see Clause 7),

- gives an overview of different use cases for pseudonymization that can be both reversible and irreversible (see Annex A),

- gives a guide to risk assessment for re-identification (see Annex B),

- provides an example of a system that uses de-identification (see Annex C),

- provides informative requirements to an interoperability to pseudonymization services (see Annex D), and

- specifies a policy framework and minimal requirements for trustworthy practices for the operations of a pseudonymization service (see Annex E).

 

The primary purpose of ISO/IEC 19788 is to specify metadata elements and their attributes for the description of learning resources. This includes the rules governing the identification of data elements and the specification of their attributes. ISO/IEC 19788 provides data elements for the description of learning resources and resources directly related to learning resources.

 

ISO/IEC 19788-3:2011 is designed to help implementers with a starting point for adopting ISO/IEC 19788, defining an application profile that specifies, through adding constraints to the use of some data elements, how the ISO/IEC 19788-2 element set can be used.

 

This document specifies cybersecurity requirements and associated assessment requirements for identity management systems that qualify as products within the meaning of Regulation (EU) 2024/2847. Such products are classified as important products (class 1) according to the implementing regulation Commission Implementing Regulation (EU) 2025/2392.

 

This document covers:
- general description of the product belonging to that category and the product and/or components such product with digital elements; 
- description of their use case; 
- security analysis; 
- definition of applicable risk profiles to be considered for these product with digital elements; 
- applicable cybersecurity requirements for each risk profile; 
- applicable cybersecurity assessment and test requirements for each risk profile.

 

Product not in the scope of this document:
- chip, Embedded OS, Applets; 
- PKI products; 
- cyber security products needed for securing IT infrastructures (VPN, SIEM….); 
- all products that are classified as default such as the anti-fire detectors products. 

 

This document defines cyber security requirements for products with digital elements belonging to product category “Hardware Device with Security Boxes” (hereinafter called “Product” or “HWSB product”).

 

The technical description of “Hardware Devices with Security Boxes” can be found in Annex II of [CRA].

 

The Hardware Devices with Security Boxes in scope are designed for deployment in a range of environments and where the threat landscape includes attackers with various attack potential.

 

HWSB are hardware-based systems intended to provide secure storage, processing and use of sensitive data, including cryptographic assets, within a protected hardware boundary (envelope).

 

This document applies to the HWSB part of the product. The applicability of this document to specific products is determined based on their intended purpose, use case and risk assessment.

 

This document specifies the requirements and their test methods applicable to all elastomeric auxiliaries used for orthodontics both inside and outside the mouth, in conjunction with fixed and removable appliances.

 

The work item aims to differentiate between biodegradable and non-biodegradable plastic materials. Non-biodegradable plastics are defined as those plastics which do not biodegrade, even in conditions which are conducive to the process. In contrast, the biodegradation of biodegradable plastics occurs when they come into contact with active microorganisms, under conditions that are conducive to biodegradation. This process is analogous to the biodegradation of natural polymers. The plastic materials that are categorised as being intrinsically biodegradable can be utilised in the design of products with a high risk of dispersion. The test scheme is not intended to be applicable to any specific application. Instead, the objective is to develop a framework methodology that can be utilised across diverse industrial sectors for the identification of biodegradable plastics, with the subsequent application of these plastics in the manufacture of various products and for different purposes. The work item does not intend to characterise and evaluate the environmental impact of products containing plastics identified as biodegradable. The test scheme should address the definition of intrinsic biodegradability of plastic materials, without determining the hazard potential of the products, which necessitates a distinct assessment that extends beyond the scope of this particular work item. The rate of biodegradation of a plastic object is not the focus of this particular work item, as it is contingent on environmental conditions. The test scheme to be developed will not be sufficient to carry out an analysis of the ecological risk associated with the dispersal of products, as this requires an assessment of the intrinsic hazard, of the environmental fate, in addition to the assessment of biodegradability.

 

This document is applicable to self-propelled and pedestrian propelled manual and semi-manual industrial trucks as defined in ISO 5053 1:2020 including their load handling devices and attachments (hereafter referred to as trucks) intended for use in potentially explosive atmospheres.NOTE 1 Attachments mounted on the load carrier or on fork arms which are removable by the user are not considered to be a part of the truck.This document specifies supplementary technical requirements for the prevention of the ignition of an explosive atmosphere of flammable gases, vapours, mists or dusts by industrial trucks of equipment group II and equipment category 2G, 3G, 2D or 3D.NOTE 2 The relationship between an equipment category (hereafter referred to as category) and the corresponding zone (area classification) is shown in informative Annex B.This document does not apply to:— trucks of equipment group I;— trucks of equipment group II, equipment category 1;— trucks intended for use in potentially explosive atmospheres with hybrid mixtures;— protective systems.This document does not apply to trucks intended for use in potentially explosive atmospheres of carbon disulfide (CS2), carbon monoxide (CO) and/or ethylene oxide (C2H4O) due to the special properties of these gases.Technical requirements relating to lithium-ion batteries and fuel cells as energy sources are not given in this document due to their specific hazards.

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